added int handling to Marshaller/Unmarshaller
fixed Unmarshaller to correctly handle corrupted path for which only part of bytes denoting size were stored
refactored FileSetMatchersTest
renamed TestFile -> FakeFile
renamed TestFileSet FakeFileSet
renamed TestFileSystem -> FakeFileSystem
renamed TestSandbox -> FakeSandbox
renamed TestMessageGroup -> FakeMessageGroup
renamed .testing.parse.Test* -> .testing.parse.Fake*
TestTask -> FakeTask
renamed TestUserConsole -> FakeUserConsole
renamed TestPath -> PathTesting
renamed TestSignature -> FakeSignature