Integrated texinfo browser from QtOctave. * documentation-dockwidget.cc: Added new dock widget for the documentation. * documentation-dockwidget.h: Added new dock widget for the documentation. * bookmark.png: New icon file. * question.png: New icon file. * star.png: New icon file. * stop.png: New icon file. * zoom-in.png: New icon file. * zoom-out.png: New icon file. * parser.cc: Added file from QtOctave, refactored code. * parser.h: Added file from QtOctave, refactored code. * webinfo.cc: Added file from QtOctave, refactored code. * webinfo.h: Added file from QtOctave, refactored code. * main-window.cc: Added menu entries to handle documentation and integrated new documentation dock widget. * main-window.h: Including header for documentation dock widget and added member variable. * resource.qrc: Added icon entries for new icon files. * src.pro: Added file entries for new file added to the project.

<RCC>
    <qresource prefix="/actions">
        <file>icons/artsbuilderexecute.png</file>
        <file>icons/editcopy.png</file>
        <file>icons/editcut.png</file>
        <file>icons/editpaste.png</file>
        <file>icons/filenew.png</file>
        <file>icons/fileopen.png</file>
        <file>icons/filesave.png</file>
        <file>icons/redo.png</file>
        <file>icons/search.png</file>
        <file>icons/undo.png</file>
        <file>icons/up.png</file>
        <file>icons/configure.png</file>
        <file>icons/filesaveas.png</file>
        <file>icons/redled.png</file>
        <file>icons/arrow_right.png</file>
        <file>icons/bookmark.png</file>
        <file>icons/question.png</file>
        <file>icons/star.png</file>
        <file>icons/stop.png</file>
        <file>icons/zoom-in.png</file>
        <file>icons/zoom-out.png</file>
    </qresource>
</RCC>