Merge pull request #84 from billgarrison/master

Fixed #83: Exception thrown when adding objects conforming to NSFNanoObjectProtocol to a bag
Fixed #85: Error in - (NSFNanoDatatype)NSFP_datatypeForTable:(NSString *)table column:(NSString *)column
Fixed #82: Remove all statements testing for YES
Fixed #86: Remove warnings and minor cleanup
Fixed #87: Use __autoreleasing annotation on (NSError **) method params
Fixed #88: Use limit and filterClass in the same NSFNanoSearch does not work
Fixed #89: Is SQLITE_OPEN_AUTOPROXY a required option?
Changed project configuration to allow out-of-the-box use in a Xcode workspace. Turned off gcov code generation.

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branch : billgarrison