Start to move tree controls into panel
Remove not working template inclusions
Draw a panel around tree in review

Not perfect by any means - but review will see much more work in the
future, we'll leave it at that for now.
Fix margins for inline tree settings
Fix svg height through toBottom directive

Not happy with this... but for now, it should do...
Merge pull request #261 from latin-language-toolkit/tree-settings-style

Tree settings style