[FIX] toolbars: Move colour picker CSS from the php to css file as $headerlib->add_css no longer necessarily works all the time (fixes wish5066)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@49334 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] trackers: If a record is missing from tiki_tracker_item_fields for a user selector then that item was showing as being "owned" by whoever the current user is, as seen on dev.tiki.org. Not setting the value to $user here fixes that, and editing & creating items still works as expected in view_tracker_item and the tracker plugin.
Should fix wish5089

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@49337 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] trackers: Notices - $file['galleryId'] not set, so use $galleryId instead?

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@49338 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] trackers: If " Value Field ID" option on an ItemsList is set (as is the case in upgrades often) then check if the remote field is an ItemsLink one and ignore that option if so (thanks eromneg)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@49339 b456876b-0849-0410-b77d-98878d47e9d5