PushStyleVar/PopStyleVar: internal tweaks

Style: Moved position of ImGuiCol_TitleBgCollapsed

ColorEdit4: Added "Copy as..." option in context menu (#346)

Combo, Inputint, InputFloat, ColorEdit4 all use the small size for little square

Merge branch 'master' into styles

PlotHistogram: bars are drawn based on the position of zero (#828)

Comments (#1034)

Moved TODO list to TODO.txt

Style: Moving code in a function to make incoming diff easier to parse.

Window size can be loaded from .ini data even if ImGuiWindowFlags_NoResize flag is set (#1048, #1056)

Style: Tweaked default border (which is off by default) to be less noticeable (#707, #1019)

Style: renamed ImGuiCol_Columns_*** to ImGuiCol_Separator_*** (BREAKING), Separator() uses this color as well. (#707, #1019)

PathArcToFast: Minor renaming for clarification. Comments.

Fonts: Adding references to the fact that .OTF fonts are supported (but haven't renamed the entry points)

Fix broken ImGuiColorEditFlags_NoAlpha flag check ...

* Fixes warning:
  imgui.cpp:9295:98: warning: enum constant in boolean context [-Wint-in-bool-context]

Fixed (unlikely) Ini saving crash if the ImGuiWindowFlags_NoSavedSettings gets removed from a window after its creation (#1000) + minor FAQ tweaks

RenderArrow(): fix warning. re-orderer lines to match enum order.

Documentation tweaks

Renamed ImGuiSetCond_XXX type and enums to ImGuiCond_XXX, kept old enums under #ifdef IMGUI_DISABLE_OBSOLETE_FUNCTIONS

ColorPicker: Fixes for when ImGuiColorEditFlags_NoOptions flag is set: always read a default picker type + forward flag to sub ColorEdit widgets. (#346)

Removed old ValueColor() helpers. (#346)

RenderCheckMark() tidying up

Added ImFontAtlas::GlyphRangesBuilder helper + doc

Comments, FAQ entry (#586, #1105)

Minor string typo

Comments

Added SetColorEditOptions(). ColorPicker4: context menu to select picker type and alpha bar. Reorganized flags (again!). (#346)

Merge branch 'master' into 2016-02-colorpicker

Merge various documentation tweaks, comments, todos from the Navigation Branch to reduce drift a little

Fixed GetScrollMaxX() debug left-over from 7096fd8 (#1271)