Added silent start option

When the Silent Start Mode is enabled there
will be no 'build started' messages sent back
to Gerrit.

Change-Id: I6bdfa62bc24bac71909638b93ae62ad1c877486e
Merge "Added silent start option" into internal
Added silent start option

When the Silent Start Mode is enabled there
will be no 'build started' messages sent back
to Gerrit.

Change-Id: I6bdfa62bc24bac71909638b93ae62ad1c877486e
Merge branch i
Bug fixes for silent start

The silent start feature was pushed with a non-compiling test,
SpecGerritTriggerHudsonTest.
This change fixes the test.
Master is now towards 2.13
[maven-release-plugin] prepare release gerrit-trigger-2.12.0
[maven-release-plugin] prepare for next development iteration
Merge remote-tracking branch 'origin/2.12-beta'
Add toString() for BuildMemory.Entry

Eases debugging.
Merge pull request #191 from chgeo/entrytostring

Add toString() for BuildMemory.Entry
Sort build completed messages with worst results first

So the attention is drawn on the worst results.  Otherwise users
may e.g. miss an UNSTABLE result because they see SUCCESS first.
Merge pull request #192 from chgeo/messageorder

Sort build completed messages with worst results first