Revert cab4ee2..9b56fbe

This rolls back to commit cab4ee285053c0b39207c5dee43f5920d3d46796.
development environment
.Serialization module working and tested
version.rb update
internal_data encapsulation
introducing the 'Persistence' module
introducing 'FinderMethods' and 'Validations' mods
removing the dependency of activemodel gem
introducing the web_agent module
introducing remote_call class
parsing response to json
introducing model_schema and new tests
#schema and @internal_structure
delegation and model_schema tests
casting attributes according to schema
code refactor and added #method_missing tests
more tests and a small fix
tests refactor
attribute assignment tests
introducing the TypeConverter module