Added Alessandro (EgoAleSum) to the Thanks-section of the README

added a comment to an analyser hit

Merge branch 'refs/heads/EgoAleSum_inapp' into modernized

Fixes for issue #17

Give to Caesar what belongs to Caesar :)

Adding in-app purchases support (fixes issue #17)

modernized project settings for Xcode 4

updated copyright years

now uses global NSString variables (declared extern) for the bundle stuff so that you don't have to modify this code to use it.

plugged a leak.

Mention David Keegean (aka. InScopeApps) as contributor in readme and validatereceipt.m. Thanks David!

Fixing problems found with the static analyzer.

updating NSAssert so it doesn't error on build, fixes issue 11

Fixing bundleIdentifier spelling mistake.

Moving bundleIdentifier and bundleVersion code above any returns so the asserts can catch problems that might be masked by an early exit.