Added global definition file.
Updated sources and source build.
Updated build system.
Merge branch 'develop' of github.com:jalcine/wintermute-data-api into develop

* 'develop' of github.com:jalcine/wintermute-data-api:
  Added underground data for Wintermute::Data.
  Added CMake configuration for proper versioning.
  Allowed library for data plugin.
  Prevented load of data files.

Conflicts:
	CMakeLists.txt
	data/CMakeLists.txt