Add status inform from net proxy too.

ALL_INTERFACE_UP now will check status inform message sent by interface
proxies, and only trigger when 'UP'
Using evented_spec to test async operation

Test amqp connection.
OmfCommon's varies self.init method should not die if called multiple
times.
First spec to test AMQP comm layer
Stubs OmfCommon.comm is somehow unavoidable

Start to migrate XMPP comm test to use new evented spec.
Always use UUID for testing topic creation, since Topic factory class is
singleton and does NOT get emptied during runs.
Disable outdated tests.
Remove expired cert in testing fixture
Testing live XMPP publish
Enable rabbitmq on travis.ci
Would increased XMPP timeout work for Travis
Try to set up bundler cache for Travis
Add Message.reset to isolate specs
Break EC runner to init and run, easier for unit testing
Deferred process wrapper implemented in RC is not used any more
Stop using em-minitest-spec in RC tests
Archive OEDL content to OML db via meta_data table
Merge branch 'master' of git://github.com/ardadouk/omf into ardadouk-master
Merge branch 'ardadouk-master'
Update doc to use new install task

[skip ci]
Reset class var properly in EC property spec
Fix problem of parsing experiment props