luci-app-cjdns: fix invalid XML

JavaScript source included in status.htm didn't escape from XML context.
Fix that by adding
//<![CDATA[
//]]>
construct.
This is needed so browsers don't get confused (some did).

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Merge pull request #32 from dangowrt/master

luci-app-cjdns: fix invalid XML