Removed unused convert function; fixed typos; cosmetics
Replace scaling modes 'fit-width' and 'fit-height' with smart 'fit'. See #119
Center view. See #119
Add method loadScript

loadScriptAtPath method now just reads a file at path and then calls loadScript.

loadScript method makes it possible to eval arbitrary JS.
Add method initWithFrame:andAppFolder:withBootJS
Implemented WebSockets, based on @michaelrhodes work
Merge embedding improvements from @leolannenmaki