Projects/Plasma/4.0.2 Backporting Session

Changes to consider

• dashboard improvements (including the "new" animation introduced post 4.0)
• panel config (size/span/location, adding/removing of panels)
• systray (if it's not already)
• taskbar improvements
• color scheme fixes (?)
• icon alignment algorithms
• drag&drop panel-desktop in both directions, with visual feedback (?)
• being able to move applets (like somewhere added apps) on the panel
• miscellaneous

<del>** r773932 (Fix crash on closing applets) and r773933 (Fix broken usage of Plasma::Phase)</del>