Added some utility methods in UUIDGenerators
Refactored RecordingUUIDGenerator, implementing it with threadlocal observers
instead of captured generated session ids list
in order to be more compatible with the way GivenRecorders should be implemented
Provided Recorder implementation for GivenUUIDGenerator
double quoting strings in GivenUUIDGenerator's generated data
Refactored RecordingUUIDGenerator, not using ThreadLocal anymore
refactored GivenUUIDGenerator.withAddedUUID() to concat()
see discussion https://github.com/restx/restx/pull/38#commitcomment-3977624
Merge pull request #38 from fcamblor/uuidGeneratorRecorder

UUIDGenerator recorder