Added ImFontAtlas::AddFontFromCompressedTTF() helper + binary_to_compressed_c.cpp tool

AA branch: Minor optimisation merge + thickness for non-aa strokes.

Merge remote-tracking branch 'origin' into 2015-03-antialiased-primitives ...

Conflicts:
	imgui.cpp

ImDrawList: Minor optimisation.

AA branch: Fixes.

AA branch: Test disabling aa at runtime for stroke and fill.

AA branch: fixed circles.

Warning fix.

AA branch: remove code unnecessary for this branch.

Merge remote-tracking branch 'origin' into 2015-03-antialiased-primitives ...

Conflicts:
	imgui.cpp
	imgui.h

ImDrawList: bits of renaming.

Renamed io.MetricsVertices to io.MetricsRenderVertices

ImDrawList: inline AddVtx() calls for profit in highly debug builds

ImDrawList: internal refactoring toward a following commit for indexed rendering.

Tweaks.

Fix rounded frames to follow previous change

Renamed AddArcFast() parameter 'tris' to 'filled'

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

Revert AddArcFast()->AddArc(), removed modulo from function 200d348

fix unused variable warning by clang

Renamed ImDrawList::AddArc() to ImDrawList::AddArcFast() for compatibility with future API, and changed 2*PI range from 0..12 to 0..16

Merge remote-tracking branch 'origin' into 2015-03-antialiased-primitives

Fixed IsRootWindowOrAnyChildFocused() crashing if no window has focus (introduced yesterday in c38c54a)

Fixed user-facing version of IsItemHovered() ignoring overlapping windows

Merge remote-tracking branch 'origin' into 2015-03-antialiased-primitives

Added ShowMetricsWindow()

Added (not exposed) DisableHideTextAfterDoubleHash to disable ## processing.

Added IO.MetricsVertices counter

Examples: Fixed ShowExampleAppManipulatingWindowTitle() not doing the right thing, broken in ff35d24

Clicking on void loses keyboard-focus so application can use TAB back