Slightly simplify grammar

Fix parsing of static methods with dynamic method name

fix doccomment

Optimize the NodeDumper (30% drop)

Measure time spent in parser, pretty printer and comparison

Fix formatting of markdown README

Add known issues

Fix InlineHTML printing

Rewrite README

Add missing rules to parser to allow a::${b}

Don't check for method existance in pretty printer anymore

Add goto support to pretty printer

Add doccomments and slightly change some APIs

Fix typo in grammar

Fix some pretty printing issues

Decouple NodeDumper from NodeAbstract

Make Node_Scalar instanceof Node_Expr

Remove Stmt_Noop

Furthre work on PrettyPrinter

Fix wrong Node signature for String_Scalar created by T_STRING_VARNAME

Further work on PrettyPrinter

Replace yydebug flag with separate debug parser "ParserDebug"

Debugging shouldn't be necessairy normally, but carries a 25% performance overhead.

Fix some prettyprinting issues

Parse escape sequences in encapsed strings too

Further work on PrettyPrinter. Add possibility to test PrettyPrinter correctness