Replace gccxml

[timowest]

Replace gccxml since it doesn't support templates. Here are some alternatives

http://scottmcpeak.com/elkhound/sources/elsa/
https://blog.mozilla.org/tglek/2009/01/29/semantic-rewriting-of-code-with-pork-a-bitter-recap/
http://stackoverflow.com/questions/526797/good-tools-for-creating-a-c-c-parser-analyzer