PasswordBox: validationTooltip bugfix

PasswordBox has the same bug as TextBox and ComboBox had, this should fix it.

https://github.com/MahApps/MahApps.Metro/issues/134
Issue #426: ToggleSwitch Bug

I've added a binding between ToggleSwitch and ToggleButton that fixed the bug that i reported on issue #426
Merge pull request #425 from stefan-schweiger/patch-1

PasswordBox: validationTooltip bugfix
Fixed issue #308

This commit also fixes a bug that caused the window to not maximize
correctly on a secondary monitor when ignoring the taskbar.
Update ToggleSwitch.cs
Update Flyout.cs
Merge pull request #427 from Traquina/patch-1

Issue #426: ToggleSwitch Bug
Dragging interop fix

Most users will not notice any difference, but I've changed the way
dragging windows is handled specifically to allow interop with the the
sticky windows library here:

https://bitbucket.org/alfonse/wpf-window-snap
Merge pull request #430 from flagbug/issue-308-fix

Fixed issue #308
Merge pull request #432 from Traquina/patch-2

Update Flyout.cs
bugfix for issue raised in #435
Merge pull request #434 from 5flags/master

Window drag interop fix
fix for #441 from @dak8