Complaints of errors in Xcode 4.3 with the NSCachedURLResponse category

[samstewart]

When using Xcode 4.3, a warning message is raised because of the overridden methods in the category on NSCachedURLResponse.

More Info:
http://www.iphonedevsdk.com/forum/iphone-sdk-development/99057-new-xcode-4-3-compiler-warnings-categories.html

We've written a simple wrapper instead which conforms to the NSCoding and NSCopying protocols and does not use categories. From our limited testing the approach seems to work and alleviates the error.

[samstewart]

After looking over diff a bit closer I noticed some company code. Let me isolate the fix first.

[samstewart]

OK, removed the proprietary naming scheme so should be all ready to go. We included some other small fixes for code clarity, etc.

[samstewart]

Re-added "lowercaseString" code in most recent commit

[samstewart]

The recent commit fixes an error as described below:

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The removal of the NSCachedURLResponse category means that NSKeyedArchiver will throw an EXC_BAD_ACCESS when attempting to load NSCachedURLResponse data. This means that this change requires a cache refresh, and a new cache key namespace that will prevent this from happening. Old cache keys will eventually be evicted from the system as new keys are populated.