[MOD] Revert r36763: Use json encoding instead of seriliaze for Tiki Connect data for better compatibility (thanks Xavi)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/13.x@52314 b456876b-0849-0410-b77d-98878d47e9d5
[MOD] Convert Tiki Connect data to json encoding (only for mother.tiki.org really, thanks again Xavi)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/13.x@52315 b456876b-0849-0410-b77d-98878d47e9d5