updated TextboxHelper.Watermark to respect Textbox Padding
Use the Text location for Watermarks in TextBoxes
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
really fix min/max button visibility

- add ResizeModeMinMaxButtonVisibilityConverter to handle changes from
the min/max boolean properties and the window resize mode
- add some tests
the dispatcher wants the access
Merge pull request #1376 from MahApps/1362-punker76-ShowMinMaxButton-bug

[WIP] fix not working ShowMinButton/ShowMaxRestoreButton properties
make flyout visible in design time
Merge pull request #1379 from MahApps/1378-punker76-show-flyout-in-designer

make flyout visible in design time
collapse flyouts on flyouts control in designer

inherited flyouts are shown in designer, but flyouts on flyouts control
should not shown!
some changes to NumericUpDown

- make it possible to override ScrollViewer
HorizontalScrollBarVisibility, VerticalScrollBarVisibility properties
- TextBox TemplateBinding to MinHeight
- TextBox TemplateBinding to Foreground