Minor stuff.
Type name sanification.
Mother of all commits.
Recursive slot support.
Fixed build errors from GCC 4.8.
Fixed build errors from GCC 4.6.

Apparently, GCC 4.6 can't compile std::shared_ptr<const T>.
Updated sample configration.
Disable cluster links w/o Gateway.
Verbose error message for unreachable nodes.
Merge branch 'asio'

Conflicts:
	include/cocaine/context.hpp
	src/context.cpp