- removed socket.cpp and socket.h
- implementation from this files moved to tcp_acceptor, tcp_connector, tcp_stream.
- moved this files to platform.
Merge remote-tracking branch 'remotes/origin/master' into net_refactor

Conflicts:
	projects/core/core.vcxproj
	projects/core/core.vcxproj.filters
	src/editor/editor_server.cpp
	src/platform/pc/socket.cpp
- merged master
- fixed build
- removed unused file from project
Merge pull request #55 from nem0/net_refactor

Net refactor
Merge remote-tracking branch 'remotes/origin/master' into multithread_refactor