Plugin system

[kenany]

Many IRC bots are modular, and this looks like the best route for nwitch to take. Theoretically, nwitch could simply become a set of plugins on top of an existing IRC bot, but I haven't found a bot that appeals to me.

How it might work

• All plugins should be prefixed with nwitch- (like grunt- or express-). This namespaces plugins and prevents their configs from conflicting with ones used by nwitch itself.
• All plugins should be uploaded to npm.
  • This would require the user to add plugins to package.json as dependencies... this isn't user-friendly.
  • A CLI tool will be used to download plugins from npm. nwitch will go through node_modules/ and load anything that begins with nwitch-.
  • Users will use npm to install plugins.
• Configs for plugins are part of config.toml:

[nwitch-censor]
enabled = true
blacklist = ["meanie", "hate"]

[kenany]

Mostly implemented in 0.3.0, just need to figure out the config stuff.