cylc/cylc — pull request #985 by benfitzpatrick (2014-06-19 08:45:08+00:00)
Title: #119: use `^` symbol for initial cycle point relative dependencies

This uses the caret symbol (`^`) as a way of indicating that a
dependency offset is relative to the initial cycle point rather than
the current cycle point. This replaces our older null string bracket
`[]` syntax.

@hjoliver, please review.