update trees demo, fixes MaterialDesignInXAML#896

Merge branch 'master' of https://github.com/jizc/MaterialDesignInXaml…

…Toolkit into jizc-master

Merge pull request MaterialDesignInXAML#649 from Keboo/clippedIcons

Icons on TextBox context menu appear clipped.

release prep [skip ci]

push selection change events behind text events, so hit proxy can que…

…ry current state better, fixing issue with hint colouring. MaterialDesignInXAML#532

prep release number

update icon pack

make hyperlinks for scheme

Merge branch 'master' into release

remove empty trigger