Fix NN for remote jobs

Add tests to ensure NN behaves correctly to submit number equals 100.
Increase test timeout
Merge branch 'master' into fix-remote-nn
Fix NN problem for remote host with shared fs
Fix back comp start-up task on RHS of graph
#1008: fix start-up graphing in simplest case
remove whitespace
#1090: fix missing graph error reporting
cylc gui: alter displayed time zones.

Display ETC in daemon time zone, and add time zone
info to all time fields.

Make mean dt ISO 8601-compatible.

Remove unused switches from wallclock.py functions.
Merge pull request #1089 from matthewrmshin/fix-remote-nn

Fix NN for remote jobs
Merge pull request #1094 from benfitzpatrick/1008.fix-start-up-graph

#1008: fix start-up graphing in simplest case
Merge pull request #1095 from benfitzpatrick/1090.fix-missing-graph

#1090: fix missing graph error reporting
Merge pull request #1093 from benfitzpatrick/fix-startup-problems

Fix RHS start-up task graph usage
Merge pull request #1096 from benfitzpatrick/cylc-gui.etc-utc

cylc gui: alter displayed time zones.