subproject :
better creation using event listeners
patched & guard against same-named subprojects
placeholder impl now created in endpoint subproject rather than in is'
improved subproject logic code
completed tree snapshotting event listener code & test (but this method doesn't work TODO)
more UI & REST code update to subprojects
code discovery now works & configured in AXXX
AXXX auto init : removed Pivotal platform constraint so its WS can match nonetheless