added missing imports
Merge pull request #257 from Atheros1/master

added missing imports
added newchandialog.py
Rename files with spaces in names.

These filenames are technically allowed, but aren't that fun.
Fixed issue #157: Use $XDG_CONFIG_HOME
Some initial coding work for chans
Move code related to settings file upgrade
Merge pull request #259 from fiatflux/filename_fix

Rename files with spaces in names.
Merge pull request #261 from xj9/xdg

Fixed issue #157: Use $XDG_CONFIG_HOME
Merge branch 'master' of github.com:Bitmessage/PyBitmessage
Increment version number to 0.3.4
Merge pull request #265 from Atheros1/master

Various changes. Now on PyBitmessage v0.3.4