[FIX] Get correct search results for tracker plugins inside a pretty tracker, when accessed from a trackerlist on page 2+

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48704 b456876b-0849-0410-b77d-98878d47e9d5
dos2unix

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48705 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] Only reset the offset, when it is actually set

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48706 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] filegals: Stop feature_use_fgal_for_wiki_attachments from making an empty gallery for every page visited, make the gallery only when something is uploaded to it.
New script /doc/devtools/remove_empty_wiki_attachment_filegals.php will remove "spare" empty ones created before this fix.

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48707 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] codemirror: Colour in code plugin listing again (modes is an object in cm 3, was an array previously)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48708 b456876b-0849-0410-b77d-98878d47e9d5