Patch phpdoc 1

[weierophinney]

Added patchList to ResourceInterface
Added setters and getters for Identity and InputFilter to ResourceInterface
Some other small phpdocs improvements...

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Originally posted by @Wilt at zfcampus/zf-rest#101

[weierophinney]

Marked as BC break, and scheduled for 2.0.0, due to interface additions.

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Originally posted by @weierophinney at zfcampus/zf-rest#101 (comment)