Change listing of Portal deployments

I think it's probably important to list the IMOS Portal first as it is the one we keep up-to-date with the latest version of the software.
I also expanded 'AODN' and made it a link to the AODN page on the IMOS website.
Jenkins version bump
Search results using icons
Merge pull request #1526 from aodn/update_readme

Update to readme links to Portal deployments
Merge pull request #1527 from aodn/SEO-searchChanges

Search results using icons
Wrapper to the Google Analytics function
added en.js support for all trackUsage and modified tests
refactor trackUsage into category classifications
refactored onclick html function to OpenLayers en
Merge pull request #1540 from aodn/nav_tracking_merge

Wrapper to the Google Analytics function
portal with no db, no filters
refactor layer controller for get filters requests
script to fetch and convert filters to xml

parsing of xml filters from local directory
simplify HostVerifier, also more secure

 * does not allow host because it's in the 'Host' HTTP header
 * faster search via hash map
 * reduce allow hosts to actual hosts
Removed another unused function
Remove splash pages (use landing page in favour)
Removed images and stylesheets not currently in use
Removed references to scanners, and Portal admin pages
Remove Mail and Quartz plugins
Remove more AODAAC code