added: MathML test 026 (RTL and Arabic alphabets) in epub30-test-0100, including reference image
added: MathML test 027 (Elementary Math: longdivision) in epub30-test-0100, including reference image
Merge pull request #43 from pkra/master

added: MathML test 026 (RTL and Arabic alphabets) in epub30-test-0100