Fixed Y scroll aiming when Horizontal Scrollbar is enabled (#665). Tweak log demo.

Fixed GetScrollMaxX(), GetScrollMaxY(). Tweak demo to display more data. Using functions in Begin(). (#1271)

Demo: Comment about 'static' and some tweaks (#1267)

Comments about IMGUI_DISABLE_TEST_WINDOWS (#1240, #169)

Comments (#1172, #1231)

Version 1.51 WIP tag

Version 1.50

Demo: Fixed warnings introduced in 0828a1f

Fixed computation of ImFont::MetricsTotalSurface not taking oversampling into account

Comments

ImFont: Store the texture surface used to get an idea of how costly each font is.

Demo: Console: Fixed a completion bug when multiple candidates are equals and match until the end.

Fixed word-wrapping which would never wrap after a 1 character word. (thanks @sronsse)

Demo: comments

Ignore GCC 6 warnings (#883)

Fixed overzealous GCC warnings (#883) + partly undo 8553bab

Ignoring overzealous GCC warnings (#883)

Demo: Comments, even though nobody appears to read the comments.

Font: Default font given explicit name "ProggyClean.ttf"

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

Demo: Custom Rendering: Tweak so end of line can be dropped outside of canvas, more pleasing.

outdated dragging API mentioned in demo text ...

Looks like you changed the API on dragging, but did not update the description text for it. 
https://github.com/ocornut/imgui/issues/167

Fix clang warning: unknown warning group '-Wreserved-id-macro'

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

ShowStyleEditor: tweak font map display to show glyph details when hovered.

ShowStyleEditor: show font map / grid in more details.

Style: Added ButtonTextAlign, ImGuiStyleVar_ButtonTextAlign (#842)

Fixing minor english typos (#827)

Add null terminator to ShowStyleEditor output_type combo options ...

Without a null terminator the Combo() function indexes outside of the "items_separated_by_zeros" string.

Minor bits