Global room id/name

Added option to define default global value for room id/name if none provided in specific job config.

Custom HipChat server

1.2.0

Merge remote-tracking branch 'upstream/master'

Per Job Token!

New feature:

• custom Auth Token per Job can be defined,
• using global Auth Token by default if none provided.

Initial release.

Initial release. Main features:

• HipChat Api v2,
• global Auth Token setting.