Update gtest to r652
Use C++11

- Build with C++11
- Remove boost dependency
- Use std::shared_ptr
Update build to work with g++/clang++ on linux.
Remove boost references from README.
Merge branch 'master' into parse-bin

Conflicts:
	src/include/djp/AST.h
Update ASTBin.h to use std::shared_ptr.
Parse methods.
Parse attributes.