add sass mode
keep indent level for all modes by default
fix php highlighting inside html attributes
fix #1241 PHP highlighting of closing tag in comment
simplify converter
fix #997: Pascal Language Support
update tests
remove remnants of regex_allowed
fix tokenizer on ie8
changes $arrayTokens to use exec instead of split
 1 it works on ie8
 2 it is faster on chrome http://jsperf.com/capturing-split-vs-exec
unfortunately exec is slow on firefox but ff regexes are a bit rusty atm (v21), and whole tokenizer is slow on it anyway.