Merge pull request #153 from dariomanesku/master

Fixing scroll bug that was introduced with the previous imgui commit.
Fixed SDL2 entry.
Merge branch 'master' of github.com:bkaradzic/bgfx
Updated Blendish to latest.
Updated Blendish to latest.
Fixed Blendish warnings.
Added multiple windows example.
x11: Clear window after initialization.
Windows: Clear window after initialization.
DX9: Fixed swap chain depth creation.
Disabled dxerr, causes issues when building without DXSDK.
OSX: Clear window after initialization.
Added swap chain caps.
Updated README.
Added inital mouse and keyboard support for OSX
Merge pull request #157 from emoon/master

Added inital mouse and keyboard support for OSX
Fixed warning: array subscript is of type 'char' [-Wchar-subscripts].
Added EGL swap chain.
Merge branch 'master' of github.com:bkaradzic/bgfx
x11: Post size event when initializing window.