Sb directory added under src/components.

	+Removal of SBNavigationMesh,
	+Removal of Detour/Recast,
	+Removal of SBParsers/SBAssetHandlers that won't be used,
	+Removal of sr_import_ply.cpp,
	+Reimplantation of SBAssetHandlerSk.* :
		The innerant code is pretty light, as the main function of it
		(loadSk) is situated in sk_skeleton_io.cpp.
Addition of testSBInt
(a small ogre code that will soon make me able to test if all the required
functionalities of Sb are still well handed)
Modifications to App, Bonhomme, Entity and Sb.
Minor changes to Bonhomme
Addition of new mesh and skeleton.
Addition of a global header : <sb/SmartBody.h>
Minor modifications
	* App.cpp, App.h
	* Bonhomme.cpp, Bonhomme.h
	* Sb.cpp, Sb.h
	* Input.cpp
Addition of Behaviors* and Retarget*
	* Behaviors : to load and set up various (now yet) behaviors.
	* Retarget : retarget a behaviors set from the original character
		the set was designed for to another one.
Addition of new media.
	* sinbad (the exemple character of ogresmartbody),
	* references (to contain the skeletons of the characters
		the behaviors are set up for).