added links and info icons for end user help

Please review and test the following changes.  Wait for @robgur review before merging and pushing live.

Added Help link to search page: http://129.237.201.29:8080/search

Added info icons and associated tooltip javascript and css for Spatial Quality tab in detail. Also added full link to Spatial Quality Tab guide under results table: http://129.237.201.29:8080/o/western-new-mexico-university/wnmu-fish-collection-arctos?id=c490c59b-867d-4b5f-b5be-cbb4bd931666#

Added collections language to publishers page per Rob's request: http://129.237.201.29:8080/publishers

Modified header menu so that ? icon goes to portal help tab (in a new window since users are likely to want to be able to click between both the portal and the help if they need help).

Modified footer for change date/time.

Also added collections language to third slide on carousel at http://www.vertnet.org (not part of this pull)