Added pseudo-mailing-list feature
added Portable Mode feature
commit new files: specialaddressbehavior.ui and .py
Fix to Bitcoin-related functionality in arithmetic.py (thanks to Github user fcicq)
updated defaultKnownNodes
adjust Settings window UI so that it looks appropriate on Linux
resize settings dialog box to fit contents
Magenta color used for mailing lists
Merge branch 'master' of github.com:Atheros1/PyBitmessage
Merge pull request #57 from Atheros1/master

Added pseudo-mailing-list feature; added Portable Mode feature