Fix for Issues
   #564 "new panel: cfg "Line size" can be set to 10px but the value is not accepted"
   #563 "new panel: vertical mode makes panel too lerge (width)"
Add RazorGridLayout::setCellXXXWidth, RazorGridLayout::setCellXXXHeight and RazorGridLayout::setCellFixedXXX,  functions

   RazorGridLayout::setCellMinimumHeight
   RazorGridLayout::setCellMinimumWidth

   RazorGridLayout::setCellMaximumWidth
   RazorGridLayout::setCellMaximumHeight

   RazorGridLayout::setCellFixedSize
   RazorGridLayout::setCellFixedHeight
   RazorGridLayout::setCellFixedWidth
Fix Issues for the tray
       #564 "new panel: cfg "Line size" can be set to 10px but the value is not accepted"
Fix Issue #564 for the quicklaunch
           #564 "new panel: cfg "Line size" can be set to 10px but the value is not accepted"
Fix Issue #564 for the quicklaunch, set correct size for the placeHolder message
     #564 "new panel: cfg "Line size" can be set to 10px but the value is not accepted"
Fix Issue #564 for the colorpicker
       #564 "new panel: cfg "Line size" can be set to 10px but the value is not accepted"
Fix Issue #564 for non separate plugins
       #564 "new panel: cfg "Line size" can be set to 10px but the value is not accepted"
Fix Issue #564 for the mainmenu plugin
    #564 "new panel: cfg "Line size" can be set to 10px but the value is not accepted"
Set color for the mainmenu text and mount label
Rename Maximum button width to Preferr button width in the taskbar
Merge branch 'master' of github.com:Razor-qt/razor-qt

Conflicts:
	razorqt-panel/plugin-taskbar/razortaskbar.cpp
Fix Issue #564 for the mainmenu plugin
    #564 "new panel: cfg "Line size" can be set to 10px but the value is not accepted"