Changed markdown code language to swift
Added highlighting CSS and regex for swift syntax
More support for punctuation
Improved readme file
Revert error in array example
Added 'as' as a keyword
fix variable names such as "asd1" by adding word boundaries to numbers
Support for class keyword
fix dot notation
Merge branch 'swift-parser' of github.com:yangshun/swift-cheat-sheet into swift-parser

Conflicts:
	js/swift-highlight.js
More keywords highlighting