Gradle getdown release

Create the getdown release channel for Jalview.org
None

Plan branches

Plan Build Completed Tests Reason
bug-JAL-3700_mapSequenceSelection No build history Never built
bug-JAL-3765_Find_bugs_in_21112 No build history Never built
patch-JAL-3700_JAL-3748_JAL-3763_for_2_11_1_3 No build history Never built