Deselecting implemented
Bugfix double-click after area select
Don't double-select on different levels in the hierarchy
Zoom around cursor
Configuration keys in tree
Added clear state button
SelectionTree/SelectionNode added
Gitignore update: JSHint
New selection system: live selection tree update
Shift-select + ctrl-select
Connect tree selection with canvas selection
Group/Digit/Dot/Corner details view based on selection
Drag selection
Code formatting