updated TextboxHelper.Watermark to respect Textbox Padding
Use the Text location for Watermarks in TextBoxes
Add new LoginDialog control and demo
Remove cancel button by default, and change the default text of the Affirmative button to "Login"
Remove unnecessary code
changing so that you can change the Cancel button visibility correctly.
Fixing casing so that the first letters are uppercase.
Fixing the Demo for the case change on username and password to Username and Password
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fix IconEdgeMode binding, add IconBitmapScalingMode
fix last commit
fix not hidden flyouts
Merge pull request #1368 from MahApps/1339-punker76-hidden-flyout-bug

fix not hidden flyouts
fix setting the HorizontalContentAlignment for editable combobox
Merge pull request #1369 from MahApps/1367-punker76-HorizontalContentAlignment-ComboBox-bug

fix setting the HorizontalContentAlignment for editable combobox
clear editable combobox too
Merge pull request #1370 from MahApps/1338-punker76-ComboBox-ClearTextButton-bug

fix ComboBox ClearTextButton bug
some TextboxHelper issues fixed

- add example for this issue: TextboxHelper.ClearTextButton does not
work when is applied via Trigger #1283
- remove inheritance to DependencyObject to avoid possible bugs with
attached properties
- change getter for HasText and add a setter
- fire HasText property on controls loaded event
- fix BindingExpression error for PasswordBox
- add example from @thoemmi for:  a search box with a magnifier on its
button, but as soon as text is entered, the button content should change
to an X.
Merge pull request #1371 from MahApps/punker76-fix-some-TextboxHelper-issues

some TextboxHelper issues fixed
store min/max button visibility and use it on resize mode change