Implemented emission from ofMesh in the Emitter class.
Fixed a bug in Emitter where emission from ofMesh was not respecting activation flag.
Added support for inheriting input mesh's color by the particles. At the moment there's no flag or control for it. It just checks if the mesh has color or not and then imports it. Also need to recheck the indexing used for inheriting color.
Fixed a bug which could have caused the Ptnum to be duplicated for particles. Added a destructor for the ParticleSystem.
Implemented kill routine for ParticleSystem. Merging dev with master.