[KIL] remove old unused obsolete slideshow feature styles

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@50180 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] diff: Use PCRE_UTF8 modifier on preg functions when calculating diff - was making utf-8 non-ascii chars disappear from the output (thanks luciash, should solve wish5091?)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@50181 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] diff: Initialise some vars

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@50182 b456876b-0849-0410-b77d-98878d47e9d5
[KIL] remove old unused obsolete slides dir

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@50183 b456876b-0849-0410-b77d-98878d47e9d5
[FIX]Minimum height set for title in forum thread topic for anonymous so that it can be fully read with fivealive-lite themes.

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@50184 b456876b-0849-0410-b77d-98878d47e9d5