Updated icons pack. Now it contains 1214 vector icons.
A lot of crap to get simple dialogs to work with colors. Fixes #1234
Force content of SimpleDialogs to bind.

Fixes #1238
Changed the way ProgressForeground was set. It may help with #1149
Small improvement: added margin to ContentControl for Split and DropDown buttons
try fix disappeared taskbar item
fix checking win 8
Merge pull request #1239 from Amrykid/dialogs-patch-something

[WIP] Amrykid's Super Awesome Dialog Patch
Fix for #1235

Reset all mouse drag related events when ShowTitleBar is changed.
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
Moved SetWindowsEvents to end of ToggleVisibiltyForAllTitleElements
remove some boilerplate code
fix ResizeMode="NoResize"