Abort timed out connections with abortConnection()

Timed out connections are not always killed with transport.loseConnection().
Call transport.abortConnection() instead.

http://twistedmatrix.com/documents/12.2.0/core/howto/servers.html

This fixes the memory leaking issues.
Merge pull request #81 from varatada/master

Abort timed out connections with abortConnection()
fixed incompatibility with older versions of twisted introduced with memory leak fix
print warning if older version of twisted without abortConnection
Fix for litecoin block sending

Use getblocktemplate instead of submitblock for litecoin node
Merge pull request #85 from Rav3nPL/patch-11

Fix for litecoin block sending
fixed self.node
added optional stratum subscribe arguments
Make p2pool's stratum implementation match the dumb de facto diff standard of scrypt stratum pools.
Merge pull request #86 from wtogami/master

Fix p2pool's stratum scrypt support
clarified parse function
Update readme syntax
Change readme extension, link official wiki
Update readme to github-flavored-markdown format
Final readme rewrite
Merge pull request #92 from hardcpp/master

Update readme + alternate p2pool web front end
Update setup.py

readme.md :)
Merge pull request #94 from Rav3nPL/patch-12

Update setup.py
Fix missing dep for windows
Add script building instruction for visual c++