CBD-924:  now works without REPORT_DIR being set beforehand

Change-Id: I07e40878618292606e6f1eb055d0b403ab67f4bf
CBD-924:  hide REPOS_SRC under REPORT_DIR

Change-Id: I0ca23f1286b5f293a3fae322284126961dccf2e6
Merge branch 'master' of http://github.com/couchbase/build