Some unused imports and variables removed.



git-svn-id: svn+ssh://svn.code.sf.net/p/mcomix/code@985 ef8490bc-f317-4725-81ed-e95a9aca1bcf
Support for zip's with BZIP2 encoded files

From: Awad Mackie <firesock@users.sf.net>

git-svn-id: svn+ssh://svn.code.sf.net/p/mcomix/code@986 ef8490bc-f317-4725-81ed-e95a9aca1bcf
Mention zip/bz2 extraction.

git-svn-id: svn+ssh://svn.code.sf.net/p/mcomix/code@987 ef8490bc-f317-4725-81ed-e95a9aca1bcf