Fix Issue 1422 - add help text to repl and uberjar tasks documenting implicit profile application
Warn once when project.clj in checkout is missing.
Update docstrings for repl and uberjar tasks based on feedback from hyPiRion
Merge pull request #1454 from mpblair/profiles-help

Document :uberjar/:repl merging. Fixes #1422.
Merge remote-tracking branch 'upstream/master'
Making new methods private for issue #1458