Fixed stuff, things work better now.

Client no longer responds to packets from itself.

DHT_test can now find the ip of one peer based on its client id.

Some stuff fixed.
Fixed one possible bug in the DHT and added a basic TODO list.

Fixed a possible segfault which could have been cause by handling an
empty packet.
Fixed a line in DHT.c and clarified something in DHT_test.c.
Change markdown headers
More header markdown cleanup
Even more header fixing
Testing if removing the after-hash marks is valid markdown
Testing unindent will look good for paragraph text
Removed many indents for readability
Last indents and linkification of IRC links
GitHub does not support IRC:// links
Merge pull request #12 from mehrzad/master

Cleaned up the README - mehrzad
Add .txt links
Merge pull request #13 from mehrzad/master

Just noticed this too, worth fixing - mehrzad
Updated docs.
Added small things to readme.