Add event system to Handler.
Add Robot#trigger.
Add RSpec helpers for testing event subscriptions.
Trigger the connected event when the shell adapter starts.
Add events documentation to the README.
Fix typo in README. [ci skip]
Add event routing test helpers to README. [ci skip]
Improve organization of testing documentation. [ci skip]
Bump version to 2.5.0. [ci skip]
Add :loaded event.
Add shut down events.
Bump version to 2.6.0.
Relax gem dependency requirements.
Correct misspelling of 'fictious' to 'fictitious'
Merge pull request #22 from slant/patch-1

Correct misspelling of 'fictious' to 'fictitious'
Update old route signature in docs. [ci skip]
Add redis-server to Travis services.
Only attempt to kill the process if the PID file exists.
Add redis-server to travs.yml template.

Travis CI now requires the redis server to be explicitly.
Allow robot to recognize commands prefixed with the robot's alias.