Add branch choice to upgrade job.
Revert "Add branch choice to upgrade job."

This reverts commit e278783826144b4b466dd071c2f0c23b061460ac.
Add option to select bracnch to upgrade to
Revert "Add option to select bracnch to upgrade to"

This reverts commit 9e280367d204cb2269ec36a7b029fc4ee7fe08e2.
add option for selecting target update branch
Merge pull request #25 from tbeckham/master

Add branch choice to upgrade job.