0.10

• Considerable refactoring, especially in bot.py
• Migration of more commands to use argparse
• Shakespeare command/filter added
• Added alembic
• Changed admin commands to use the normal command infrastructure, including an admin decorator
• One-off per-command filters via --filter argument
• Doesn't horribly destroy unicode from external services
• Bot cleanly shuts down
• Misc. bugfixes

Issues fixed: #100, #134, #143, #192, #279, #397, #522, #584, #641, #642, #710, #729, #803, #804, #859, #870, #873, #882, #890, #931, #935, #938, #944, #945, #946, #947, #948, #952, #965, #966, #969, #979, #980, #983, #990, #991, #993, #994, #1007, #1012, #1018, #1023, #1026, #1030, #1034