Packages on the same file have been spread over separate ones.
Some code refactoring: BP::Model::Storage is now BP::Model::Mapper
Code refactoring: 'loadConcepts' method has been renamed to 'mapData'
With no input files, model-mapper.pl generates the native models.
Code cleanup
Global variable controlling whether to generate code for abstract concepts is now parameterized.
Two variables used in one packages were moved to the other one
Dead code was breaking the run
New mapper: documentation generator

All the code in model-doc-generator.pl has been transferred and
adapted to the BP::Loader::Mapper's model, so model-mapper.pl can
generate documentation with a proper project file.
Path handling fixes on BP::Loader::Mapper::DocumentationGenerator
model-doc-generator.pl now calls BP::Loader::Mapper::DocumentationGenerator

As all the code has been properly transferred from model-doc-generator.pl
to BP::Loader::Mapper::DocumentationGenerator, it does not make sense to
keep code duplication.

This utility is going to be deprecated, in favour of model-mapper.pl
Added space
Added support for annotating the PDF with XMP
Added support for multiple SQL dialects and other parameterizations
Preparation for the inclusion of json files from CV.
Only give anonymous CV ids to those meta CVs which are holding more than one CV.
Removed _jsonId method from several subclasses from BP::Model (it was only needed by NoSQL databases)
Now we can know the CV which defines a term.
BP::Model::Term->parentCV was returning whether was set, not the value!
At last! CVs are at last translated to JSON!!