Small improvement: added margin to ContentControl for Split and DropDown buttons
try fix disappeared taskbar item
fix checking win 8
fix the OwningWindow is null

set the OwningWindow value before using it
fix nasty TopMost bug
Merge pull request #1249 from MahApps/1240-punker76-taskbar-under-win8

try fix disappeared taskbar item
Merge pull request #1258 from MahApps/punker76-topmost-bug

fix nasty TopMost bug
fix etting IgnoreTaskBarOnMaximize in the code-behind
Merge pull request #1260 from MahApps/1259-punker76-IgnoreTaskBarOnMaximize-change

fix setting IgnoreTaskBarOnMaximize in the code-behind
Merge pull request #1241 from QuantumDeveloper/Split_DropDownButtons

Small improvement for Split and DropDown...
Merge pull request #1257 from ye4241/master

fix the OwningWindow is null
remove some boilerplate code
fix ResizeMode="NoResize"
Merge pull request #1261 from MahApps/1254-punker76-MetroWindow-ResizeMode-NoResize

fix ResizeMode="NoResize"
Merge remote-tracking branch 'upstream2/master'