NXBT-726: fix indent after first import
NXBT-726: handle maven options + cleanup/doc
NXBT-726: use a specific directory for release scripts
NXBT-726: fix options retrieval from Jenkins job params + add helpful echoes
NXBT-726: do not deploy when NO_STAGGING is false as either maven deploy is done and tags/commits pushed, either nothing is done and left to the perform phase + rename param to NO_STAGING
NXBT-726: handle retrieval of the perform script from the release script
NXBT-726: make jenkins build fail on script errors