Live graph movie script upgrade, and frames to share dir.
Moved live graph movie to a GUI menu option.
Style update.
Detect tasks with no explicit cycling defined.

This is already handled properly in cylc-5 backward compatibility mode, but in
cylc-6 format suites it generates a misleading error message.
Added a change accidentally omitted from last commit.
Addressed style feedback.
Address style comment.
cylc validate: initial before final cycle fail
New tests added.
Merge pull request #1261 from kaday/1259_initial_gt_final

cylc validate: initial greater than final fail
Merge pull request #1260 from hjoliver/gcylc.live-graph-movie-upgrade

Live graph movie functionality upgrade.
Merge pull request #1264 from hjoliver/detect-no-explicit-cycling

Detect tasks with no explicit cycling defined.
cylc poll-all: add functionality to poll all