Some documentation, again
Added tox_add_tcp_relay

See also:
https://github.com/irungentoo/toxcore/commit/01203a22727ffb33bdeca702381e1d86e00bde2b
Added a simple function to get tox's data
Merge branch 'master' of https://github.com/Impyy/SharpTox

Conflicts:
	SharpTox/Core/Tox.cs
Merged from master and fixed conflicts