Fix to ensure restoreTransactions completion callback is called

Added MutableSet instead of regular counter to insure that callback is always called in the case of duplicate updatedTransaction callbacks

Update OpenSSL dependency to support frameworks

Increase version in README and pod spec

Improve unit tests involving observers

Merge pull request robotmedia#109 from robotmedia/feature/deferred-tr…

…ansactions

Add support for deferred transactions

Merge pull request robotmedia#96 from streeter/typo-fix

Thanks!

Merge pull request robotmedia#79 from jcaille/master

Using non-reserved keywords in C++ and explicit casting of pointers

HeaderDoc formatting

Remove unused RMStore-Prefix.pch

Increase version