0.0.3

Major changes:

• Changed all functions in EventHandler for a single on_event function with an Event enum.
• Added Event enum.
• Added ErrorMsg event for fatal errors.
• Merged on_welcome and on_your_host into Event::WelcomeMsg because they are both messages send to the user and don't really need to be separated. (If for whatever reason differentiating them is required, use Event::RawMessage)

0.0.2

renamed enums to fit rust convention

0.0.1

Merge pull request #4 from MCT32/IrcConfigBuilder-removal

Removed IrcConfigBuilder