[Qt] Enable MathML
https://bugs.webkit.org/show_bug.cgi?id=110205

Reviewed by Simon Hausmann.

Tools:

    * qmake/mkspecs/features/features.pri:

LayoutTests:

    Baselines for the MathML tests.

    * platform/qt/mathml/presentation/attributes-expected.png: Added.
    * platform/qt/mathml/presentation/attributes-expected.txt: Added.
    * platform/qt/mathml/presentation/fenced-expected.png: Added.
    * platform/qt/mathml/presentation/fenced-expected.txt: Added.
    * platform/qt/mathml/presentation/fenced-mi-expected.png: Added.
    * platform/qt/mathml/presentation/fenced-mi-expected.txt: Added.
    * platform/qt/mathml/presentation/fractions-expected.png: Added.
    * platform/qt/mathml/presentation/fractions-expected.txt: Added.
    * platform/qt/mathml/presentation/fractions-vertical-alignment-expected.png: Added.
    * platform/qt/mathml/presentation/fractions-vertical-alignment-expected.txt: Added.
    * platform/qt/mathml/presentation/mo-expected.png: Added.
    * platform/qt/mathml/presentation/mo-expected.txt: Added.
    * platform/qt/mathml/presentation/mo-stretch-expected.png: Added.
    * platform/qt/mathml/presentation/mo-stretch-expected.txt: Added.
    * platform/qt/mathml/presentation/mroot-pref-width-expected.png: Added.
    * platform/qt/mathml/presentation/mroot-pref-width-expected.txt: Added.
    * platform/qt/mathml/presentation/over-expected.png: Added.
    * platform/qt/mathml/presentation/over-expected.txt: Added.
    * platform/qt/mathml/presentation/roots-expected.png: Added.
    * platform/qt/mathml/presentation/roots-expected.txt: Added.
    * platform/qt/mathml/presentation/row-alignment-expected.png: Added.
    * platform/qt/mathml/presentation/row-alignment-expected.txt: Added.
    * platform/qt/mathml/presentation/row-expected.png: Added.
    * platform/qt/mathml/presentation/row-expected.txt: Added.
    * platform/qt/mathml/presentation/style-expected.png: Added.
    * platform/qt/mathml/presentation/style-expected.txt: Added.
    * platform/qt/mathml/presentation/sub-expected.png: Added.
    * platform/qt/mathml/presentation/sub-expected.txt: Added.
    * platform/qt/mathml/presentation/subsup-expected.png: Added.
    * platform/qt/mathml/presentation/subsup-expected.txt: Added.
    * platform/qt/mathml/presentation/sup-expected.png: Added.
    * platform/qt/mathml/presentation/sup-expected.txt: Added.
    * platform/qt/mathml/presentation/tables-expected.png: Added.
    * platform/qt/mathml/presentation/tables-expected.txt: Added.
    * platform/qt/mathml/presentation/tokenElements-expected.png: Added.
    * platform/qt/mathml/presentation/tokenElements-expected.txt: Added.
    * platform/qt/mathml/presentation/under-expected.png: Added.
    * platform/qt/mathml/presentation/under-expected.txt: Added.
    * platform/qt/mathml/presentation/underover-expected.png: Added.
    * platform/qt/mathml/presentation/underover-expected.txt: Added.
    * platform/qt/mathml/xHeight-expected.png: Added.
    * platform/qt/mathml/xHeight-expected.txt: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@143319 268f45cc-cd09-0410-ab3c-d52691b4dbfc