update physics module
cleaned the mathematics library
Fixed all uncommit my last update
Starting to add the physics module!
Update
Update body class and world class
update
Added edge shape
added Transletor in Teable class and Fixed some bugs
New code style (Allman)
New code style (*.hpp files) (Allman)
Added Font::textSize
added gui
Update xcode project
update popup class
Directly load a BMFont file
Added physics debug  draw
Added Components
Added begin/end contect callback
Added PreSolver/PostSolver contact callback