Merge branch 'implement_wrapper' into 'use_boost'

Jenkinsfile

configure.ac

doc/source/QuickStart/using_python.rst

examples/reader_example.py

src/Makefile.am

src/csds_array.hpp

src/csds_cache.hpp

src/csds_cosmology.cpp

src/csds_error.hpp

src/csds_fields.hpp

src/csds_hashmap.cpp

src/csds_hashmap.hpp

src/csds_header.cpp

src/csds_index.cpp

src/csds_index.hpp

src/csds_interpolation.hpp

src/csds_logfile.cpp

src/csds_logfile.hpp

src/csds_mapped_file.cpp

src/csds_mapped_file.hpp