Improve Local alert content type

Both HH and CPN asked us to look at Local alerts with a view to:

* Improving the UX on the node creation form
* Improving the UX on the frontend – so that clicking on the panel will take users through to the linked page / forum post
* Simplifying the workflow for drafting, submitting and publishing Alerts
* Strengthen the Link field so that it links to the forum post about the missing moggie

**Extra bonus points:**
* Add the ability to create a new Alert next to the homepage Alert panel.
* Add the Alert panel to other pages across the site, rather than just the homepage

**Some proposals:**
These are just some proposals for how to manage this and reduce workload – I'm looking for discussion and alternative solutions

1. Get rid of Alerts altogether and just use News articles with a Flag on the News Article node creation page to request it be published as an Alert (similar to featuring it using the **OpenLocal Highlight (Content)** – _Homepage Highlights view_)?
1. To make it easier to reference the forum post containing the alert, could we make the forum link field into an _Autocomplete field_ which only references forum posts?
1. Alternatively, offer the same "Publish as an alert" Flag in the Forum Post node creation field (since according to @GilesGibson most Alerts are first published in the Forum.