Fixed bug #324: Tcl lexer is highlighting parts of names as keywords
added support for variable variables
Add two options to handle c99 and stdlib types for the C lexer. These types are colored by default and can be disabled by passing c99highlighting=False or stdlibhighlighting=False to the lexer options.
fixed broken regular expression in scheme lexer
Fixes a bug where some part of a C ternary expression (?:) could