remove LuaWrapper instance from PhysicsWrapper. #96
move water.lua to scripts/elements/ subfolder. #96
provide registerLuaFunctions in ParticleScriptAccess. #96

* this lets you register all particle-related functions to a Lua instance you provide to make it possible to call these functions from within the script.
add basic lua script for the Manipulator. #96
add 'namespacing' to registered functions. #96

* ParticleScriptAccess for example registers its functions with prefix 'psa_' to lua.
add registerLuaFunctions to Hand. #96
add more functionality to the ParticleScriptAccess-Lua interface. #96
merge master into usable_scripting_96.
enhance psa-lua interface by physx parameter settas/gettas. #96
add ParticleGroup removing interface to scripts, fix various bugs, introduce various bugs. -.- #96
fix removing of ParticleGroups. #96
add ParticleGroup switching (TAB). #96
add registerLuaFunctions() to TerrainInteractor. #96
add GLFW constants to glfw.lua. #96
move most manipulator funcs to manipulator.lua. #96
add registerLuaFunctions() to World. #96
Fixed. It's not as short as it maybe could be, but understandable and performs the intended function efficiently. #96

(Still crashes on Esc)
Merge branch 'master' into usable_scripting_96
add registerLuaFunctions to UserInterface. #96
remove scroll-element-choosing. choosing elements now by numbers. #96