Added 'finish' method to PubIAPTrackingRequest to remove itself as the delegate for the SKProductsRequest so that it doesn't try and access released memory after the tracking request is canceled and dealloced. Need to test
Revert "Merge branch 'fayette-city' into develop"

This reverts commit 84c1820e56ff05a902babb34935d2ca61aac7d10, reversing
changes made to 609e4ad41ebf64534da95c3459d6c4b398c19f38.

Conflicts:
	example/PublisherContentViewController.m
	example/RootViewController.m
	src/PHPublisherContentRequest.m
	src/PHStoreProductViewControllerDelegate.m
Fixed the anchors in the readme to link to the correct section; next, will remove the <a> tags and see if they are unnecessary
Removed the <a> tags from the README, as I don't think these are creating anchors as intended
Merge branch 'maidens' into develop
Merge branch 'east-hardwick' into develop
Fixed up the setPluginIdentifier method to remove reserved characters as per RFC 3986, trim the remaining string to 42 characters, use the default on nil and empty string, and not double-release the value if it is being set as the same string (common problem in custom setters)
Merge branch 'speculator' into develop

Conflicts:
	src/PHAPIRequest.m
Fixed subcontent requests so that they create their own urls on the client side given additional parameters passed by the server side, as opposed to getting the full (broken) url from the server
Merge branch 'half-sick' into develop
Merge branch 'develop' into pre_cache

Conflicts:
	src/PHAPIRequest.h
	src/PHAPIRequest.m
	src/PHPublisherContentRequest.m
Lots of work done on centralized cacher; not tested or complete. Saving work for now.