Prepare for 0.1.1 release

Changelog.md update

Updates Changeling.md

[terminal] Adds VT sequence `CSI 16 t` to retrieve cell dimension in …

…pixels.

[terminal_view] Fixes rendering colored glyph bitmaps (such as emojis)

[terminal_view] TextRenderer: Fixes using the wrong baseline value fo…

…r fallback fonts.

[terminal] TerminalProcess: eliminated.

[Github] fixes & cleanup all around deprecated set-env

CPack: Added support for creating DMG (and proper ZIP) files for OS/X…

… via CPack.