Examples: refactored all examples application to make it easier to isolate and grab the code you need for OpenGL 2/3, DirectX 9/11, and toward a more sensible format for samples.
Scrollbar grab have a minimum size (style.GrabSizeMin), always visible even with huge scroll amount. (#150).
Scrollbar: Clicking inside the grab box doesn't modify scroll value. Subsequent movement always relative.
Added "###" labelling syntax to pass a label that isn't part of the hashed ID (#107), e.g. ("%d###static_id",rand()).
Added GetColumnIndex(), GetColumnsCount() (#154)
Added GetScrollPosY(), GetScrollMaxY().
Fixed the Chinese/Japanese glyph ranges; include missing punctuations (#156)
Fixed Combo() and ListBox() labels not included in declared size, for use with SameLine(), etc. (fix #149, #151).
Fixed ListBoxHeader() incorrect handling of SkipItems early out when window is collapsed.
Fixed using IsItemHovered() after EndChild() (#151)
Fixed malformed UTF-8 decoding errors leading to infinite loops (#158)
InputText() handles buffer limit correctly for multi-byte UTF-8 characters, won't insert an incomplete UTF-8 character when reaching buffer limit (fix #158)
Handle double-width space (0x3000) in various places the same as single-width spaces, for Chinese/Japanese users.
Collapse triangle uses text color (not border color).
Fixed font fallback glyph width.
Renamed style.ScrollBarWidth to style.ScrollbarWidth to be consistent with other casing.
Windows: setup a default handler for ImeSetInputScreenPosFn so the IME dialog (for Japanese/Chinese, etc.) is positioned correctly as you input text.
Windows: default clipboard handlers for Windows handle UTF-8.
Examples: Fixed DirectX 9/11 examples applications handling of Microsoft IME.
Examples: Allow DirectX 9/11 examples applications to resize the window.
ShowTestWindow: Fixed "undo" button of custom rendering applet.
