Create unfollow_user.py

CLI script to stop following a user as specified by command arguments.
Create block_user.py

CLI script to block a user as specified by command arguments.
Create unblock_user.py

CLI script to unblock a user as specified by command arguments.
Create block_spammer.py

CLI script to block and report a user for spamming, as specified by command arguments.
Merge branch 'patch-3' of github.com:Hasimir/twython
Merge branch 'patch-4' of github.com:Hasimir/twython
Merge branch 'patch-5' of github.com:Hasimir/twython