Fix local jump error in Callback#muc_message.
Bump version to 1.6.2.
Add RSpec task to Rakefile.
Update for Lita 4.
Bump version to 2.0.0.
Add new config parameter: server

When specified, client tries to connect to that server
instead of the default "chat.hipchat.com"
Remove deprecated used of config.adapter.
Bump version to 2.0.1.
Merge pull request #17 from s2ugimot/specify_hipchat_server_lita4

Specify hipchat server address
Reword config.server description to highlight HipChat Server the use case.
Bump version to 2.1.0.
Merge remote-tracking branch 'upstream/master'