Two new unit tests

Added unit test for Rule::translateToUrlEncodedPath
Unit tests for all methods of Transformation except getSourceAsPath
change in TransformationTest

moved $parameterMock and $parameters to helper method 'givenAParameter'
moved mock for transformer to 'testSetAndGetTransformer'
removed needless calls to helper method
change in RuleTest

Used different test string because of problems character encoding
correction TransformationTest

added declaration for $fixture
Merge pull request #1395 from mbed67/unittests20140809

Two new unit tests