Examples: DirectX10,DirectX11 : Minor renaming

Examples: DirectX11: Shallow massaging to make the code more consistent/readable (following #570)

Examples: DX11: Cleanup state backup/restore code (#570)

capture and restore all state

IO: Added "Super" keyboard modifiers (corresponding to Cmd on Mac and Windows key in theory although the later is hard to read) (#473) ...

NB: Value not used.

Trim trailing spaces

FAQ and comments about the use of ImTextureID (#562, #561, #521, #510, #497, #475 ...)

Examples: DirectX11: fixed ImGui_ImplDX11_NewFrame() from recreating device objects if render isn't called (g_pVB not set)

Examples: Fixed msvc batch files from warning.

Examples: DirectX10: Minor tweaks, updated to latest example changes (#424)

Merge pull request #420 from RaptorFactor/master ...

Examples: DX11: Compile shaders with lower features levels.

Allow DX11 renderer to be used with devices with lower feature levels.

Examples: DX11: Remove debug flag (#415)

Examples: Not clearing input data/tex data in atlas (will be required for dynamic atlas anyway). Effectively fix resizing in DX examples. ...

+ Standardized comments.

Examples: Header comments.

Examples: Header comments.

Examples: Clarified comments. Removed font merging example from comments.

Examples: Added README into the Visual Studio solution to people are less likely to miss it.

Examples: DirectX9/11: Removed assumption about Unicode build in example main.cpp (#399)

Examples: Added /Zi (output debug information) in build_win32.bat files

Examples: Most examples apps detect if ImDrawIdx was changed to 32-bits instead of 16

Examples: update all examples with same comment (#389)

Examples: Possibly clarified the intent of imgui_impl_* files.

fix POSITION format (ImDrawVert::pos is 2D, not 4D) ...

the inputlayout incorrectly described the POSITION attribute as being
4D, while ImDrawVert::pos is 2D. This went unnoticed because the buffer
binding has a stride of sizeof(ImDrawVert) and the POSITION is treated
as a float2 in the vertex shader. If you switch POSITION to float4 in
the vertex shader (and actually use the z/w in the matrix
multiplication) then everything become wacky-looking since it's
interpreting the texture coordinates as z/w. On a similar note: It's
weird that the projection matrix takes z and w into consideration when
those don't exist in the shader due to positions being float2s.

Examples: DirectX11: Fixed batch file for VS 2012+, still works for 2008/2010.. Include path order matters...

Examples: Added batch files to build Windows examples with VS

Examples: comment on setting the RenderDrawListsFn function.

Examples: DirectX11: fixed vertex shader which breaks with VS2015 somehow (DX11 version?) (#313)

Examples: DX9, DX11: mapping missing middle mouse button.

Examples: imgui_impl* functions declared with IMGUI_API to ease copy & pasting into projects using DLL