Merge pull request #8 from ScottKillen/master

Remove processing of non-slack IRC users
Add support for all node-irc options #5
Add reference to node-irc options in README
Update to 0.1.2
Merge pull request #9 from jimmyhillis/bugfix/default-irc-options

Add support for all node-irc options
If no ~ is provided in your usermap, then add it in #7
Merge pull request #10 from jimmyhillis/bugfix/no-tilde-required

If no ~ is provided in your usermap, then add it in