Add POST handling and URLDecode POST/GET request data. Switch Login to use POST instead of GET.

Hopefully this doesn't introduce any new bugs.
Merge branch 'master' of https://github.com/szmoore/MCTX3420.git
Only use POST for login, and only if the GET string is empty
Fix 'friendly name' too.
fix some gui stuff
Merge pull request #65 from jtanx/master

Add POST handling and properly URL Decode GET/POST requests