InvisibleButton() honor negative size consistently with other widgets that do so

ImDrawList: added AddBezier(), PathBezierTo() for cubic bezier curves (#311)

Examples: OpenGL: fix for retina screens + io.DisplayFramebufferScale storage (#287)

Malformed UTF-8 don't terminate string, output 0xFFFD (#307)

Added ColorConvertU32ToFloat4() helper and ImColor(ImU32) constructor.

Added GetWindowHeight() for completeness + BeginGroup() comment.

ImDrawList: Fixed issues with channels split/merge. Functional without manually adding a draw cmd. + Removed unnecessary parameter to Channe

Window clipping rect fixes (for child windows with borders among others)

Comments

Tabs to spaces

Fixed child windows with the ImGuiWindowFlags_NoMove flag not taking direct focus

Metrics: showing some internal state

Passing ImGuiWindowFlags_NoMove to BeginChild() allows to inhibit moving root window from this child

Trim trailing whitespace (#305)

Remove CaptureInputCharactersFromApp and minor cleanups (#305)

Added flag showing whether the GUI wants text input ...

Conflicts:
	imgui.cpp

InputText: intentionally ignore character input when ctrl/alt are held (not sure if correct) (#279)

Build fix

ImHash: defaults seed to zero + comment.

Added GetMousePosOnOpeningCurrentPopup().

Metrics window: shows indices along with triangles count (#299)

ImGuiTextFilter: default parameter width=0.0f for no override, allow override with negative values

ImGuiTextFilter::PassFilter() supports string range. Added [] helper to ImGuiTextBuffer.

Demo: added simple Log demo

Renaming some argument to clarify the local vs screen coordinates

IsWindowHovered() takes account of window hoverability (may be disabled because of a popup) + comment ...

Was a dupe of IsMouseHoveringWindow() anyway, they are now "clearly"
different.

Allow to override ImDrawIdx type (#292)

Added assert on index overflow (#292)

Minor code compaction (following #296)

Minor Windows adjustments