Bump to Rake ~> 10.0
Merge pull request #181 from parkr/patch-1

Bump to Rake ~> 10.0
The room id can now be a string

this changed in this commit:
https://github.com/github/janky/commit/a438e1f338cc9fecf0775468a669ed13b6356730

We need it to have janky post from hubot into our kato room
Since the room id is now a string, it cannot be zero

But we can check if it is empty instead to use the fallback
Post to the default room, when build was initiated from github
Read from seperate hubot chat settings
Move color and message into methods

That way they can be reused later on
Add failure service

Basically the same as a chat service. But should be used for shouting in
a more visibile room.
require the new failure service
Load the newly created failure service