[MOD] jCapture wizard detail page specifies the file gallery by name.
It will be created if it doesn't exist. If it is already specified, the field is read-only.

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@47686 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] PHP warning 

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@47687 b456876b-0849-0410-b77d-98878d47e9d5