Function 'localize' moved to a library and added a test-case

- bnc#886117
New version and new changes file entry
Better texts and their description
Merge pull request #75 from kobliha/move_localize_function_to_make_it_testable_and_to_be_able_to_write_a_test_case_and_finally_to_adjust_that_test_case

Function 'localize' moved to ServicesManagerTarget library