Opening up the Random Search function should do two things:

1. Bring up the Card Search page
2. Create a first time popup (like with MoJhoSto) explaining that, after filling out the search, press menu at any time to create a random search. Also tell them that, anytime they are looking at a list of results, they can hit menu to randomize it).

I've removed the Randomize button from the main search page, mostly because it contains so much stuff, but as it is, we can get a pretty complex search almost entirely on one page, on most any phone, which is awesome.

The instructions for random search will be included in the generic "what's new" popup.

Button functionality was added in r115

Random was implemented, and the info was in the popup