ImVector: Tweaked reserve() flow to avoid calling MemFree(NULL) which is unnecessary. (#1796)

Examples: OpenGL3: Trying to make the call to glBindSampler optional to make the example code easier to use/share with different context version. (#1806)

Version 1.61 + todo additions

Demo: Tweaked custom rendering custom, added a Thickness drag. Clarified use of vertical/horizontal line. Add a single pixel demo (wowow)

ColorEdit: Fixed not being able to pass the ImGuiColorEditFlags_NoAlpha or ImGuiColorEditFlags_HDR flags to SetColorEditOptions(). Demo tweak.

Fix for atof with glibc.

Added ImAtof, ImCeil, ImFloorStd to IMGUI_DISABLE_MATH_FUNCTIONS for consistency. Configuration comments.

Added IMGUI_DISABLE_MATH_FUNCTIONS in imconfig.h to make it slightly easier to redefine wrappers to std maths functions such as fabsf(), fmodf(), etc. Comments.

Comments about AddConvexPolyFilled(), PathFillConvex() requiring a clockwise order path. (#1811)

Update README.md

Demo: Fixing build due to using INT_MAX, UINT_MAX, LLONG_MAX, ULLONG_MAX.

Demo: Renamed "fixed overlay" to "simple overlay" because it's not fixed any more!

Demo: Added demo for DragScalar(), InputScalar(), SliderScalar(). (#643)

Data types: DragScalar: Fixed speed of integer values tweaking with keyboard/gamepad when speed < 1. Enforce min/max bounds when power curves are used. SliderScalar: Fixed integer/slow tweaking. (#643)

Data types: DragScalar, InputScalar: default parameters. Added IM_STATIC_ASSERT(). Comments.

Documentation tweaks, comments

Merge branch 'data_types' ...

# Conflicts:
#	CHANGELOG.txt
#	imgui.cpp

Scrolling: Fixed a case where using SetScrollHere(1.0f) at the bottom of a window on the same frame the window height has been growing would have the scroll clamped using the previous height. (#1804)

Combo: Horizontally offset items using WindowPadding instead of Indent, for consistency.

Internals: Made ContentsRegionRect absolute to reduce confusion. Renamed InnerRect to InnerMainRect, renamed WindowRectClipper to OuterRectClipped.

Internals: Nav: Extracted code into a NavClampToVisibleAreaForMoveDir() + fix debug code + inline some functions, removed obsolete EndChild() comment.

TODO list update + Changelog and comments for #1803.

Fixed clipboard paste memory leak in SDL examples. (#1803)

Data types: Fix format srtings with leading blanks. Fix ColorEdit4() to not use obsolete formats (when using IMGUI_DISABLE_OBSOLETE_FUNCTIONS) (#643)

Apply fix from data_types branch, some widgets broken when format string doesn't contains a %. Broken by 92f0165. Data_types branch fix c5fb929.

Internals: Declaring DragBehavior, SliderBehavior in there (no warantee given) as they may be useful to custom widgets.

Moved DragScalar, InputScalar, SliderScalar to imgui.h as well as ImGuiDataType (#320, #643, #708, #1011)

Data types: Fixed empty format string (or no % specifier) breaking the parsing back of values.

Fix to allow compiling in unity builds where stb_rectpack/stb_truetype may be already included in the same compilation unit.

Settings: Comments (#923, #993)