Merge branch 'master' into 2016-02-colorpicker

Minor comments (#998)

Merge branch 'master' into 2016-02-colorpicker

Comments (#972)

Merge branch 'master' into 2016-02-colorpicker

Comments, clarified use of io.MouseDelta (#942) ...

(ImGuiIO structure layout changed)

const correctness for Combo and ListBox ...

Since Combo and ListBox only read and display the list of items, they
should not modify the pointers inside the array of pointers passed in.
Adding "const" here makes it possible to call these functions with such
an array of const pointers. Previously, a cast to "const char**" was
required as a workaround, otherwise there was a compile error.

Began improvements to columns API by splitting the Columns() function into BeginColumns() and EndColumns() and adding additional flags. The columns data still needs to be placed into a stack.

Merge branch 'master' into 2016-02-colorpicker

Font: Added io.FontDefault in ImGuiIO structure to make it easier to change default font from third-party or demo code

Add user-facing IsPopupOpen function

Merge branch 'master' into 2016-02-colorpicker

Added a void* user_data parameter to Clipboard function handlers. (#875)

Minor comments

Added ImGuiMouseCursor_None for usage by app/binding

ImDrawList: AddRect(), PathRect() default rounded_corner 0x0F->~0/-1 so it appears less obscure in IDE completions

Merge remote-tracking branch 'origin' into 2016-02-colorpicker

ImDrawList: Uses IM_COL32_A_MASK macro instead of hardcoded zero alpha testing (#844)

Minor tidying up following merge BGRA color PR (#844)

Apply Omar feedback and convert remaining 0xAABBGGRR's into IM_COL32(RR,GG,BB,AA) format.

Introduce IMGUI_USE_BGRA_PACKED_COLOR in imconfig.h. ...

When IMGUI_USE_BGRA_PACKED_COLOR is defined packed color hold in ImU32 use BGRA format instead RGBA.

Merge remote-tracking branch 'origin' into 2016-02-colorpicker

Style: Added ButtonTextAlign, ImGuiStyleVar_ButtonTextAlign (#842)

Refactor text alignment options to use ImVec2, removed ImGuiAlign (#842, #222)

Refactor PushStyleVar/PopStyleVar so it is constant time + can receive integers (yet unused) (#842)

Fixing minor english typos (#827)

ImFont: add RenderGlyph() to allow rendering of individual glyphs

Merge remote-tracking branch 'origin' into 2016-02-colorpicker

Removed a handful of obsolete (trivial) function redirection from 1.34 and 1.38 (march-april 2015) ...

OpenNextNode() -> SetNextTreeNodeOpen()
GetWindowIsFocused() -> IsWindowFocused()
GetItemBoxMin() -> GetItemRectMin()
GetItemBoxMax() -> GetItemRectMax()
IsMouseHoveringBox() -> IsMouseHoveringRect()
IsClipped() -> !IsRectVisible()

Tweak comments (#768)