Fix rosie lookup with %date in custom format.
rosie ws: fix trac links.

This fixes the generated trac links for the Rosie
web page. These incorrectly give trunk and HEAD
for the branch and revision for each suite.

The links should now reflect the correct branch
and revision.
Merge pull request #1097 from benfitzpatrick/rosie-ws-fix-trac-link

rosie ws: fix trac links.
Fix t/rose-mpi-launch --inner: use numeric ulimit

Previously it uses `ulimit -s unlimited`. Some sites do not like this. A
numeric value based on half the site limit should work better for them.
Tweak date output format.
Merge pull request #1094 from arjclark/rosie-lookup.fix_date_custom_format

Fix rosie lookup with %date in custom format.
Update CHANGES.md
Merge pull request #1098 from matthewrmshin/fix-t-mpi-launch-unlimit-s

Fix t/rose-mpi-launch --inner: use numeric ulimit
rose metadata-check: remove gtk dependence.

This removes the gtk library dependence from
rose metadata-check and the test-battery tests
for it. The importing of widgets and macros
is now via a function in rose.resource.
Added emacs syntax highlighting mode file
Update CONTRIBUTING.md

Added myself to the list
Merge pull request #1099 from benfitzpatrick/less-gtk-dependence

rose metadata-check: remove gtk dependence.
Update to fix andrew's suggestion and a few other tweaks
Merge pull request #1100 from stevewardle/emacs_syntax_highlighting

Added emacs syntax highlighting mode file
Added mention of emacs highlighting to getting started page.
Merge pull request #1101 from arjclark/document_emacs_syntax_highlighter

Added mention of emacs highlighting to getting started page.