Avoid global mw.cx.data and mw.cx.fetchPage

They need not be exposed outside the source module

Change-Id: Ib1e4597bd8e3a3a9786b60022033c03bf27449a2
Limit mw.cx.publish scope to publish module

No need to expose it in mw.cx

Change-Id: I81f595a6bd1fb80b1ab37e4883ccf580ea0c70e3