Tiny improvements per suggestion from ender`.
MPC-HC NP: pass along the channel name to the socket

theoretically, script could take some time
to do its work and meanwhile you could have switched windows
so your /np would go to the wrong one

patch by m0viefreak
Compatibility for rebranded XChat-WDK, HexChat.
Add README.md
Update README.md
mpc.hc.np.pl: tabs to spaces, fix typos