#4 Remove getter functions

[ThiefMaster]

They are horribly ugly and unpythonic.
Instead of e.g. whatever.source().xyz it should be whatever.source.xyz.
The easiest way to change this while keeping the read-only style of those properties is simply decorating all those getters with @property and then using them like normal variables.

[Jason R. Coombs]

Moved to bitbucket: https://bitbucket.org/jaraco/irc/issue/2/remove-getter-functions