Gradle getdown release

Create the getdown release channel for Jalview.org
None

Plan branches

Plan Build Completed Tests Reason
bug-JAL-4107_jalviewjs_fixes_on_2_12_branch No build history Never built
bug-JAL-4581_jalviewjs_support_for_java_security_messagedigest No build history Never built
bug-JAL-4601_manual_import_of_jpred_annotation_data_doesnt_display_ss_consensus No build history Never built
patch-JAL-4601_stk_ss_annots_showhide No build history Never built