Add 'dot' dep
Fix dot dep
Fix doxygen warning
Fix path of logo
Introduce BUILD_DOCS_DEV & BUILD_DOCS_QUIET vars to suppress messages
Improve structure of the generation of documentation

	* Relocate docs dir to resources/doxygen
	* Rename NOMLIB_DOCS_DIR to PROJECT_DOXYGEN_DIR
	* Change docs output dir to within build dir (ex: nomlib/build/docs)
	* Rename html output dir to html (was public)
	* Install targets for README.md, LICENSE.md, TODO.md
Remove non-existant paths
Add include/nomlib dir to input path
Fix case-sensitivity issue

  * Rename resources to Resources
Update comments
Fix capitlization typo
Add install target for man pages
Rename files gfx to graphics & sys to system
Move platform detection preprocessing to platforms.hpp & rename defines

	* NOMLIB_SYSTEM_WINDOWS -> NOM_PLATFORM_WINDOWS
	* NOMLIB_SYSTEM_OSX -> NOM_PLATFORM_OSX
	* NOMLIB_SYSTEM_LINUX -> NOM_PLATFORM_LINUX
Introduce debug definition NOMLIB_RELEASE_WITH_ASSERT
Rename: NOMLIB_DEBUG, NOMLIB_DEBUG_TRACE and NOMLIB_RELEASE_WITH_ASSERT
Relocate NOM_DUMP_VAR outside of debugging ifdefs
Rename NOM_RELEASE_WITH_ASSERT to NOM_DEBUG_ASSERT
Introduce DEBUG, DEBUG_TRACE, DEBUG_ASSERT options

	* BUILD_EXAMPLES & BUILD_DOCS options off by default
	* Remove BUILD_RELEASE option (if not DEBUG, we assume release)
	* Rename NOMLIB_BUILD_EXAMPLES to BUILD_EXAMPLES
Fix incorrect header path

	* Apparently we didn't finish renaming sys to system -_-