Capitalize location names and post titles

*Capitalize location names and post titles to prevent two db entries for the same thing
*Create method to display locations alphabetically.

@ChristopherThorsen @liantics - please let me know what you think.  Should be pretty minor stuff.
I'd keep the question mark. Note that this is *not* calling the `self.spam` method that you're also modifying in this PR. It's using the Rails-provided `spam?`/`spam` method, which is an instance method given to any boolean attribute. `@post` has it because it has the boolean column `spam`.