Fix bad jquery 'append' calls

There are several incorrect usages of jquery .append() method that
uses an array instead of an argument list. This isn't the proper use
of the method and while it does work now, according to Krinkle,
this might stop working in the near future.

Also see I76decb67db086bb387 for the same fix in ve-core.

Change-Id: I78a0d54ad76ab5401bc0532e636a9aaa2c0c0e04
Merge "Fix bad jquery 'append' calls"