OTStorage: inline OTInterface macro
OTStorage: inline EndInterface macro
OTStorage: inline DeclareInterface macro
OTStorage: inline DeclareBasedInterface macro
OTStorage: good-bye java-style interfaces
Merge pull request #437 from toxeus/inlineMacro

OTStorage: good-bye java-style interfaces
OTPseudonym: rename class to Nym
OTPseudonym: rename files to Nym.{h,c}pp
Merge pull request #438 from toxeus/renameOTPseudonym

OTPseudonym: rename to Nym
Message/API rename: checkUser -> checkNym.
Message rename: notarizeTransactions -> notarizeTransaction.
Message/API rename: getAccountFiles -> getAccountData.