ProgressBar() handling of border size + storing border size in window structure (#503)

Tidying up internal FindBestPopupWindowPos()

ColorEdit4: Empty label doesn't add InnerSpacing, like other widgets (ref #346)

Cleaned up the top of imgui.h, documenting all types / forward declarations

Added IM_COL32 macros (ref #346)

Honoring exact width passed to PushItemWidth(), previously it would add extra FramePadding.x*2 over that width. (ref #346) ...

If you had manual pixel-perfect alignment in place it might affect you.

InputScalarEx(): removed unnecessary aabb computation.

ColorEdit4(): removed unnecessary calls to scanf() when idle in hexadecimal edit mode.

Begin(): made the close button explicitly set the boolean to false instead of toggling it (#499)

Merge branch 'master' of https://github.com/ocornut/imgui

Examples: OpenGL2/3 Makefile; Added -lGL to Linux build

Travis CI: test adding osx

Commented Clang warning that's not compatible with all versions. Comments.

Examples: Added extra comments

Merge branch 'master' of https://github.com/ocornut/imgui

ImFontAtlas: heuristic increase texture width up to 4096 with 4000+ glyphs. Various comments (#491)

Update README.md

TreeNode(), CollapsingHeader() fixed not being to use "##" sequence in formatted label. ...

Removed DisableHideTextAfterDoubleHash hack used by Metrics window.

CalcTextSize(): adding early out for empty displayed string (#487)

Added overlooked test for label_size.x>0 before calling RenderText for label in a few instances (#487)

Examples: DirectX10 fixed ImGui_ImplDX10_NewFrame() from recreating device objects if render isn't called (g_pVB not set)

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

Added ImGuiWindowFlags_ForceVerticalScrollbar, ImGuiWindowFlags_ForceHorizontalScrollbar flags (#476)

ImDrawList: Added PrimQuadUV() helper to ease custom rendering of textured quads

Demo: extra comments and example for PushItemWidth(-1)

Examples: SDL2+OpenGL3: Fix context creation options (#468, #463)

Drag*, Slider* clarified that keyboard inputs aren't clamped (#413)

Minor optimization so that mass-calling BeginPopupContext* functions can early out more commonly without hashing ID

Various minor fixes following a pass of cppcheck static analyzer

ImVector: erase/insert uses Data/Data+Size directly.