Updated deps to support newer git
[maven-release-plugin] prepare release halbuilder-api-2.2.1
[maven-release-plugin] prepare for next development iteration
Merge branch 'release/2.2.1'

* release/2.2.1:
  [maven-release-plugin] prepare for next development iteration
  [maven-release-plugin] prepare release halbuilder-api-2.2.1
  Updated deps to support newer git
  Updated version for implementer compatability.
  Adding constant for single element arrays
Merge tag '2.2.1' into develop

Rel

* tag '2.2.1':
  [maven-release-plugin] prepare for next development iteration
  [maven-release-plugin] prepare release halbuilder-api-2.2.1