explicit UTF-8 encoding in the mwe2
    
otherwise the wizard for would fail in SwtBot tests in Tycho in Windows

Change-Id: I0d93086fa5db0f9c18262b4e4c2152cd1688c32d
fixed eol in validator tests

and factored out assertEqualsStrings in a utility class in the tests
project

Change-Id: I7b4d11f6d3b9a7e54caeadbd34d2d7682fb60579