Disable JSONParser copying
Fix wrong copy constructor
Add COLLADA compiler
Assign values to VertexFormat constants
Add MeshResource
Add JSONElement, an helper class to parse JSON documents
Add JSONElement::has_key
Make resource compiler more C++-ish
Merge branch 'master' into dae-compiler

Conflicts:
	engine/resource/ResourceManager.cpp
	tools/cli/resource-compiler.cpp
Fix wrong type in resource-compiler's compilers map
Remove debug json file generation
Merge branch 'master' into dae-compiler
Minor fix to resource-compiler
Clean up the code a little bit
Add parse_int/uint/float/double
Use parse_double() to parse numbers
Fix assert messages
Add JSONParser::is_key_unique()
Fix JSONPair docs
Adjust Quat a little bit