Bug 3934 - move test prediction pattern button

Bug 3934 - move test prediction pattern button

On the subscription add/edit screen the buttons related to numbering
patterns are grouped with the "save" button, which is potentially
confusing. This patch moves the buttons into the "serials planning"
region so they are visually grouped with related functionality.

Unrelated changes: Removed a few redundant "javascript:"
pseudo-protocols from event handlers, and added a "Cancel" link.

To test, edit an existing subscription and confirm that the prediction
pattern buttons are grouped inside the "serials planning" region.
Confirm that each button triggers the correct event. Confirm that
clicking the "cancel" link returns you to the subscription detail view.

Also test creating a new subscription. Again buttons should work
correctly. The "Cancel" link should return you to the Serials module
home page.

Signed-off-by: Paola Rossi <paola.rossi@cineca.it>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>