[FIX] /tmp is not the only folder to be able to store tmp files, sometimes it fails :)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@49186 b456876b-0849-0410-b77d-98878d47e9d5
[MRG] Automatic merge, branches/12.x 49170 to 49186

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@49188 b456876b-0849-0410-b77d-98878d47e9d5
[ENH] Ajax Share button added to tiki-share.php page.

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@49189 b456876b-0849-0410-b77d-98878d47e9d5
[FIX]Changes added to Prevent closing a popup (upload wizard) when uploading a file

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@49190 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] jquery .modal() functionality commonly added to all tracker forms to avoid double submission. also modal height value changed to obj.height instead of the window.height because when user scroll, remaining object parts(form fields) are not covered.

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@49191 b456876b-0849-0410-b77d-98878d47e9d5