Add sqlalchemy as a valid database backend.
Aka: First commit.
Add support for adding global or 'other-channel'-specific Akas.
Aka: Add some redundant constraints, just in case.
Aka: Add lock support.
Aka: Remove test that tested a Alias feature that won't be implemented in Aka.
Aka: Add test for locked Aka help + bug fixed related to locking and aka use in private.
Aka: Change required capability for (un)locking channel-specific Akas from admin to #channel,op.
.travis.yml: Add SQLAlchemy.
Aka: Fix encoding for Akas with non-ascii characters in the name.
Aka: Add support for names with spaces in them.
Aka: Allow optional arguments and $* together, and also multiple instances of $*.
Aka: Edit help of @add to match new features related to arguments.
Aka: Add recursivity test.
Aka: Add @importAliasDatabase command.
Aka: Add messages.pot.
Aka: Fix listCommands, which returned tuples instead of strings.
Merge branch 'aka' into testing