BGE: Adding a Max Jumps value to the character physic window

Actually we only have a Python API that allows to change the max jumps value.
The patch also allows non programmers to change the maximum numbers of jumps.

Reviewers: panzergame, sybren, campbellbarton, lordloki, moguri, agoose77

Reviewed By: lordloki, moguri

Projects: #game_engine

Differential Revision: https://developer.blender.org/D1302

source/gameengine/Ketsji/KX_CharacterWrapper.cpp

@@ -119,7 +119,7 @@ int KX_CharacterWrapper::pyattr_set_max_jumps(void *self_v, const KX_PYATTRIBUTE
 
 	CLAMP(param, 0, 255);
 
-	self->m_character->SetMaxJumps((unsigned char)param);
+	self->m_character->SetMaxJumps(param);
 	return PY_SET_ATTR_SUCCESS;
 }