XD-1324 Changing default Hadoop version to Hadoop 2.2.0 (hadoop22)
XD-1467: Defer access to repo in completion logic

Address review comments
XD-1468 Updates Reactor to version 1.1.0.M3
Add sleep to see if it fixes CI script tests
XD-1470: Exclude jackson jars from module lib dirs
XD-1827: Reject taps on non-existent streams.

When calling ChannelNode.resolve on a stream tap, a lookup on the stream
name is performed before continuing and an exception raised if no matching
stream is found.