Updated the internal units of all the main boxes to reflect the internal...

Updated the internal units of all the main boxes to reflect the internal constants assumed by the code.

examples/EAGLE_DMO_low_z/EAGLE_DMO_100/eagle_100.yml

 # Define the system of units to use internally. 
 InternalUnitSystem:
-  UnitMass_in_cgs:     1.98848e43    # 10^10 M_sun in grams
+  UnitMass_in_cgs:     1.98841e43    # 10^10 M_sun in grams
   UnitLength_in_cgs:   3.08567758e24 # Mpc in centimeters
   UnitVelocity_in_cgs: 1e5           # km/s in centimeters per second
   UnitCurrent_in_cgs:  1             # Amperes

examples/EAGLE_DMO_low_z/EAGLE_DMO_12/eagle_12.yml

 # Define the system of units to use internally. 
 InternalUnitSystem:
-  UnitMass_in_cgs:     1.98848e43    # 10^10 M_sun in grams
+  UnitMass_in_cgs:     1.98841e43    # 10^10 M_sun in grams
   UnitLength_in_cgs:   3.08567758e24 # Mpc in centimeters
   UnitVelocity_in_cgs: 1e5           # km/s in centimeters per second
   UnitCurrent_in_cgs:  1             # Amperes

examples/EAGLE_DMO_low_z/EAGLE_DMO_25/eagle_25.yml

 # Define the system of units to use internally. 
 InternalUnitSystem:
-  UnitMass_in_cgs:     1.98848e43    # 10^10 M_sun in grams
+  UnitMass_in_cgs:     1.98841e43    # 10^10 M_sun in grams
   UnitLength_in_cgs:   3.08567758e24 # Mpc in centimeters
   UnitVelocity_in_cgs: 1e5           # km/s in centimeters per second
   UnitCurrent_in_cgs:  1             # Amperes

examples/EAGLE_DMO_low_z/EAGLE_DMO_50/eagle_50.yml

 # Define the system of units to use internally. 
 InternalUnitSystem:
-  UnitMass_in_cgs:     1.98848e43    # 10^10 M_sun in grams
+  UnitMass_in_cgs:     1.98841e43    # 10^10 M_sun in grams
   UnitLength_in_cgs:   3.08567758e24 # Mpc in centimeters
   UnitVelocity_in_cgs: 1e5           # km/s in centimeters per second
   UnitCurrent_in_cgs:  1             # Amperes

examples/EAGLE_ICs/EAGLE_100/eagle_100.yml

@@ -4,7 +4,7 @@ MetaData:
 
 # Define the system of units to use internally. 
 InternalUnitSystem:
-  UnitMass_in_cgs:     1.98848e43    # 10^10 M_sun in grams
+  UnitMass_in_cgs:     1.98841e43    # 10^10 M_sun in grams
   UnitLength_in_cgs:   3.08567758e24 # Mpc in centimeters
   UnitVelocity_in_cgs: 1e5           # km/s in centimeters per second
   UnitCurrent_in_cgs:  1             # Amperes

examples/EAGLE_ICs/EAGLE_12/eagle_12.yml

@@ -4,7 +4,7 @@ MetaData:
 
 # Define the system of units to use internally. 
 InternalUnitSystem:
-  UnitMass_in_cgs:     1.98848e43    # 10^10 M_sun in grams
+  UnitMass_in_cgs:     1.98841e43    # 10^10 M_sun in grams
   UnitLength_in_cgs:   3.08567758e24 # Mpc in centimeters
   UnitVelocity_in_cgs: 1e5           # km/s in centimeters per second
   UnitCurrent_in_cgs:  1             # Amperes

examples/EAGLE_ICs/EAGLE_25/eagle_25.yml

@@ -4,7 +4,7 @@ MetaData:
 
 # Define the system of units to use internally. 
 InternalUnitSystem:
-  UnitMass_in_cgs:     1.98848e43    # 10^10 M_sun in grams
+  UnitMass_in_cgs:     1.98841e43    # 10^10 M_sun in grams
   UnitLength_in_cgs:   3.08567758e24 # Mpc in centimeters
   UnitVelocity_in_cgs: 1e5           # km/s in centimeters per second
   UnitCurrent_in_cgs:  1             # Amperes

examples/EAGLE_ICs/EAGLE_50/eagle_50.yml

@@ -4,7 +4,7 @@ MetaData:
 
 # Define the system of units to use internally. 
 InternalUnitSystem:
-  UnitMass_in_cgs:     1.98848e43    # 10^10 M_sun in grams
+  UnitMass_in_cgs:     1.98841e43    # 10^10 M_sun in grams
   UnitLength_in_cgs:   3.08567758e24 # Mpc in centimeters
   UnitVelocity_in_cgs: 1e5           # km/s in centimeters per second
   UnitCurrent_in_cgs:  1             # Amperes

examples/EAGLE_low_z/EAGLE_100/eagle_100.yml

@@ -3,7 +3,7 @@ MetaData:
 
 # Define the system of units to use internally. 
 InternalUnitSystem:
-  UnitMass_in_cgs:     1.98848e43    # 10^10 M_sun in grams
+  UnitMass_in_cgs:     1.98841e43    # 10^10 M_sun in grams
   UnitLength_in_cgs:   3.08567758e24 # Mpc in centimeters
   UnitVelocity_in_cgs: 1e5           # km/s in centimeters per second
   UnitCurrent_in_cgs:  1             # Amperes

examples/EAGLE_low_z/EAGLE_12/eagle_12.yml

@@ -3,7 +3,7 @@ MetaData:
 
 # Define the system of units to use internally. 
 InternalUnitSystem:
-  UnitMass_in_cgs:     1.98848e43    # 10^10 M_sun in grams
+  UnitMass_in_cgs:     1.98841e43    # 10^10 M_sun in grams
   UnitLength_in_cgs:   3.08567758e24 # Mpc in centimeters
   UnitVelocity_in_cgs: 1e5           # km/s in centimeters per second
   UnitCurrent_in_cgs:  1             # Amperes

examples/EAGLE_low_z/EAGLE_25/eagle_25.yml

@@ -3,7 +3,7 @@ MetaData:
 
 # Define the system of units to use internally. 
 InternalUnitSystem:
-  UnitMass_in_cgs:     1.98848e43    # 10^10 M_sun in grams
+  UnitMass_in_cgs:     1.98841e43    # 10^10 M_sun in grams
   UnitLength_in_cgs:   3.08567758e24 # Mpc in centimeters
   UnitVelocity_in_cgs: 1e5           # km/s in centimeters per second
   UnitCurrent_in_cgs:  1             # Amperes

examples/EAGLE_low_z/EAGLE_50/eagle_50.yml

@@ -3,7 +3,7 @@ MetaData:
 
 # Define the system of units to use internally. 
 InternalUnitSystem:
-  UnitMass_in_cgs:     1.98848e43    # 10^10 M_sun in grams
+  UnitMass_in_cgs:     1.98841e43    # 10^10 M_sun in grams
   UnitLength_in_cgs:   3.08567758e24 # Mpc in centimeters
   UnitVelocity_in_cgs: 1e5           # km/s in centimeters per second
   UnitCurrent_in_cgs:  1             # Amperes

examples/EAGLE_low_z/EAGLE_6/eagle_6.yml

@@ -3,7 +3,7 @@ MetaData:
 
 # Define the system of units to use internally. 
 InternalUnitSystem:
-  UnitMass_in_cgs:     1.98848e43    # 10^10 M_sun in grams
+  UnitMass_in_cgs:     1.98841e43    # 10^10 M_sun in grams
   UnitLength_in_cgs:   3.08567758e24 # Mpc in centimeters
   UnitVelocity_in_cgs: 1e5           # km/s in centimeters per second
   UnitCurrent_in_cgs:  1             # Amperes

examples/SantaBarbara/SantaBarbara-128/santa_barbara.yml

@@ -4,7 +4,7 @@ MetaData:
 
 # Define the system of units to use internally. 
 InternalUnitSystem:
-  UnitMass_in_cgs:     1.98848e43    # 10^10 M_sun in grams
+  UnitMass_in_cgs:     1.98841e43    # 10^10 M_sun in grams
   UnitLength_in_cgs:   3.08567758e24 # Mpc in centimeters
   UnitVelocity_in_cgs: 1e5           # 1 km/s 
   UnitCurrent_in_cgs:  1             # Amperes

examples/SantaBarbara/SantaBarbara-256/santa_barbara.yml

@@ -4,7 +4,7 @@ MetaData:
 
 # Define the system of units to use internally. 
 InternalUnitSystem:
-  UnitMass_in_cgs:     1.98848e43    # 10^10 Msun 
+  UnitMass_in_cgs:     1.98841e43    # 10^10 Msun 
   UnitLength_in_cgs:   3.08567758e24 # 1 Mpc 
   UnitVelocity_in_cgs: 1e5           # 1 km/s 
   UnitCurrent_in_cgs:  1             # Amperes

examples/SmallCosmoVolume/SmallCosmoVolume_DM/Gadget2/small_cosmo_volume_dm.param

@@ -2,9 +2,9 @@
 % System of units
 
 UnitLength_in_cm         3.08567758e24      %  1.0 Mpc
-UnitMass_in_g            1.98848e43         %  1.0e10 solar masses 
+UnitMass_in_g            1.98841e43         %  1.0e10 solar masses 
 UnitVelocity_in_cm_per_s 1e5                %  1 km/sec 
-GravityConstantInternal  4.300927e+01       %  Same value as SWIFT
+GravityConstantInternal  4.300918e+01       %  Same value as SWIFT
 
 %  Relevant files
 InitCondFile  	   small_cosmo_volume

examples/SmallCosmoVolume/SmallCosmoVolume_DM/small_cosmo_volume_dm.yml

 # Define the system of units to use internally. 
 InternalUnitSystem:
-  UnitMass_in_cgs:     1.98848e43    # 10^10 M_sun
+  UnitMass_in_cgs:     1.98841e43    # 10^10 M_sun
   UnitLength_in_cgs:   3.08567758e24 # 1 Mpc
   UnitVelocity_in_cgs: 1e5           # 1 km/s
   UnitCurrent_in_cgs:  1             # Amperes

examples/SmallCosmoVolume/SmallCosmoVolume_VELOCIraptor/small_cosmo_volume.yml

 # Define the system of units to use internally. 
 InternalUnitSystem:
-  UnitMass_in_cgs:     1.98848e43    # 10^10 M_sun
+  UnitMass_in_cgs:     1.98841e43    # 10^10 M_sun
   UnitLength_in_cgs:   3.08567758e24 # 1 Mpc
   UnitVelocity_in_cgs: 1e5           # 1 km/s
   UnitCurrent_in_cgs:  1             # Amperes

examples/SmallCosmoVolume/SmallCosmoVolume_cooling/small_cosmo_volume.yml

 # Define the system of units to use internally. 
 InternalUnitSystem:
-  UnitMass_in_cgs:     1.98848e43    # 10^10 M_sun
+  UnitMass_in_cgs:     1.98841e43    # 10^10 M_sun
   UnitLength_in_cgs:   3.08567758e24 # 1 Mpc
   UnitVelocity_in_cgs: 1e5           # 1 km/s
   UnitCurrent_in_cgs:  1             # Amperes

examples/SmallCosmoVolume/SmallCosmoVolume_hydro/small_cosmo_volume.yml

 # Define the system of units to use internally. 
 InternalUnitSystem:
-  UnitMass_in_cgs:     1.98848e43    # 10^10 M_sun
+  UnitMass_in_cgs:     1.98841e43    # 10^10 M_sun
   UnitLength_in_cgs:   3.08567758e24 # 1 Mpc
   UnitVelocity_in_cgs: 1e5           # 1 km/s
   UnitCurrent_in_cgs:  1             # Amperes