Added bindings

Update documentation for extra fonts

Clean g.WindowsById storage on shutdown.

Begin: Fixed appending into a child window with a second Begin() from a different window stack querying the wrong window for the window->Collapsed test.

ButtonBehavior: Fixed ImGuiButtonFlags_AllowOverlapMode to avoid temporarily activating widgets on click before they have been correctly double-hovered. (#319, #600)

Fixed vertical scrollbar flickering/appearing, typically when manually resizing and using a pattern of filling available height (e.g. full sized BeginChild). THIS IS A GREAT FIX, this glitch was nasty and annoying (and yet somehow nobody reported it?). Hopefully haven't broken anything else...

Minor tweaks/comments. Note that the reordering the one subtraction caused subtle havoc before the patch in 9ac8820.

Fixed non-pixel aligned bounding box of window resize grip, / which triumphally led to any re-arrangement of operations inside the resize grip code outputting non-exact size_target values which led to unstable window position because clamping code uses size in a subtraction, etc etc. Lovely how a whole system can be made to act weird with a single bad input.

Child window with MenuBar use regular WindowPadding.y so layout look consistent in child or in a regular window.

ButtonBehavior: Fixed ImGuiButtonFlags_NoHoldingActiveID from incorrectly setting ActiveIdClickOffset, which probably have no known effect, but it is more correct this way. (#1418)

Internals: Remove requirement to define IMGUI_DEFINE_PLACEMENT_NEW (#1103)

LowerBound() minor tweaks

Internal: FindWindowByName() faster and doesn't touch every windows

Examples: Constrained Resize: Added more test cases (for #1417)

Fixed auto-resize allocating too much space for scrollbar when SizeContents is bigger than maximum window size (fixes c0547d3) (#1417)

Begin: Simplified code and fixed a bug where appending into a window a second time (from a remote window) would incorrectly overwrite RootWindow with the current window in the stack. Our docking code uses this pattern.

RenderTriangle() minor tweak to align Left/Right and Up/Down arrow extents visually

IsWindowHovered() returns true when moving window (#1382, #1404)

IsWindowHovered(): Added ImGuiHoveredFlags_FlattenChilds flag. Made IsRootWindowOrAnyChildHovered() obsolete in favor of IsWindowHovered( ImGuiHoveredFlags_FlattenChilds) (#1382, #1404)

IsWindowHovered() Fix behavior when an item is active to use the same logic as IsItemHovered() (#1382, #1404)

Merge branch 'elect86-patch-1'

Reordered fields in other Style functions (#1409)

Merge branch 'patch-1' of https://github.com/elect86/imgui into elect86-patch-1

Merge pull request #1410 from elect86/master ...

Fixed a comment

Update imgui.h

Update imgui_draw.cpp

Examples: Added a bunch of comments/referencs related to io.WantCaptureMouse, io.WantCaptureKeyboard (#1262, #1237, #1219, #635, #1058, #1051, #912, #533, #703, #446, #459, #364, #213, #52, and more)

Demo: Comments (#1408)

Minor tweaks to the user guide.

Merge pull request #1402 from elect86/patch-1 ...

Minor fix typo