add language detect
some markdown fix
some fix in README
rent sample for Ruby append
some fix typo
test repl for shogun
gender repl and json file append
print() should be python3 style
add trivial_stat example
Merge remote-tracking branch 'origin/master' into feature/rpc-error-handling

Conflicts:
	README.md
gender/ruby: support 'robust' version
gender/c++: add 'robust' version
gendar/c++: remove goto-label
gender/python: add 'robust' version