Version 2.7

TAU-1700 optimized webgui APIs
TAU-1809 stacktrace for ip diff IPV1 IPV1
TAU-1440 Deprecate pi ip branch command, revert to ip copy (V1 behavior)
TAU-1804 Optimize ws status performance
TAU-1792 pi ws st for refer IP that does not have files should show "DM Error"
TAU-1816 Pi update needs to update open files to target reconcile version
TAU-1828 IP: add should set r/w/o perms for user when not a member of admin group
TAU-1796 a newly copied/branched IPV should retain the original perms
TAU-1654 pi ip refer does not report list of unmanaged files
TAU-1801 pi does not report warnings from BuildIC
TAU-1694 pi ip diff --format=json doesn't properly report deleted files 
TAU-1814 Report when setting an alias on any alias should indicate version only
TAU-1812 Stacktrace when resources collide in same path