Add forum link
Bind TCP to IPv6

This might not be sufficient, as we might need to bind to both IPv4 and
IPv6 separately, like we do in Broadcaster.
Fix link to mailing list and remove my blog
Fall back to IPv4 if IPv6 isn't available
Split UTPSocket into UTPServer and UTPSocket
Skip on STUN timeout
Remove optimized GnuTLS path due to uTP

GnuTLS will talk to the underlying sockets directly, but that's not
an option for uTP.
Add link to clearskies_core
Clarify wire protocol
Add links to android ports
Simplify prefix character of wire protocol
Add manifest splitting
Signoff form for license change
Fix formatting of license change
approval of license change from cmatheson
Update license-change.md
Merge pull request #28 from cmatheson/patch-1

approval of license change from cmatheson
Merge pull request #29 from wilagobler/patch-1

Update license-change.md
Update license-change.md
Merge pull request #30 from onionjake/patch-1

Update license-change.md