Various tidying up / comments, moved columns functions declarations, no functional changes

ImDrawList: AddRect() added optional thickness parameter + updated demo

ImDrawList: AddCircle() takes optional thickness parameter

Merge pull request #555 from DMartinek/patch-1 ...

CheckboxFlags: Added support for passing/testing multiple flags at the same time.

Merge branch 'kylawl-master'

Merge branch 'master' of https://github.com/kylawl/imgui into kylawl-master

Minor comments

Converted tabs to spaces

Renamed FindTextDisplayEnd to FindRenderedTextEnd

Exposed FindTextDisplayEnd to imgui_internal.h

Fixed coding style.

Added support for CheckboxFlags that can set multiple flags at the same time.

Comments

DragFloat(): always apply value when mouse is held/widget active, so that can use a drag over an always-reseting value

Examples: OpenGL: Fix early return on zero-sized framebuffer breaking GL state (#486, #547)

Comment (#544)

InputText() ImGuiInputTextFlags_CallbackAlways event set the EventFlag field of ImGuiTextEditCallbackData (#541)

Removed extraneous comma for pedantic compilers (#516)

Merge branch 'zapolnov-master'

Minor tidying up following (#516) - renamed ImGuiSelectableFlags_HandleDoubleClick to ImGuiSelectableFlags_AllowDoubleClick + comments

Merge branch 'master' of https://github.com/zapolnov/imgui into zapolnov-master

CaptureKeyboardFromApp() / CaptureMouseFromApp(): allow to enforce clearing the capture flag (#533) + demo + made code a little less messy

InputText: Added BufTextLen in ImGuiTextEditCallbackData. Requesting user to maintain it. Zero-ing structure properly before use. (#541)

BeginChild()/EndChild() fixed incorrect layout to allow widgets submitted after an auto-fit child wnidow (#540)

Demo: plot code doesn't use ImVector to avoid heap allocation + comment (#538)

TextUnformatted: Fixed rare crash bug with large blurb of text (2k+) not finishing with a '\n' and fully above the clipping Y line. (#535)

Demo: Fixed malloc/free mismatch and leak when destructing demo console (if it has been used) (#536)

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

Exposed FindWindowByName() in imgui_internal.h (missing chunk following 339b67c)

Update README.md