moving all answers to a different package; changing hierarchy of operations and answers; answer 'ProcessObjectsAnswer' now contains 'skipped_objects' field with reasons to skip the objects

each CRUD answer now contains field 'skipped_objects' with a list of objects that were not processed; each of these objects has a field '_reason' with the reason it was skipped'

fixing the way we work with statuses, especially when merging them; now calling Algorithm.init() in AlgorithmRestore;

statistics now work like this: 1) one must turn them on/off using the global setter (like before), 2) one can configure the algorithm to bind statistics for each operation (local thread stats) - use OperationLogger.java  class, 3) if you want distance computations to be evaluated automatically, use StatisticDistanceFunc wrapper

added HTTP client and record processor to use this HTTP client; proper usage of HTTP status in exceptions; AbstractAnswer now implements in a default way wasSuccessful() method

ErrorCode renamed to ProcessingStatus; OperationEC and BucketEC removed and corrsponding statuses were moved to individual operation answers; HttpApplication now properly processes excpetions and returns an error answer with the stack trace in the text

added a proper processing of PrintAllObjects operation - it writes output to a tmp file and then prints to JSON (and deletes); operation logger writes operation + answer to JSON just up to a certain level (parametrizable); underlying record for operations/answers is now always modifiable

added a property-like configuration to Algorithm to config the executors; added method (action) operationSetParams into Application

another round of general modifications; HTTPApplication added to MESSIF; IndexObject extends DataObject (may be rework)

creating new annotation @Required instead of @Nonnull for proxy; removing ObjectIterable interface; renaming Distance* to DistanceFunc*; adding threshold to DistanceFunction.getDistance(obj1, obj2, threshold)

Proxy package comments

Version3

minor bugs solved; RecordImpl now implements DataObject; test data added; UML diagrams added; WARNING: evaluate(Record) does not work properly

Version3

operation helpers are now internal classes in individual operations; answer mergers (answer builders) are internal classes in answers

the CoreApplication now works; operations constructed using named parameters; execution of operations tested (just fundamentally); printing of operations and answers into JSON tested;