Completes bottom sdo-flex-panel (including open/close animation)
Adds ability to dock sdo-flex-panels to the top, left and right
Removes treeview styles and assets

Treeview was replaced with the library angular-bootstrap-nav-tree
for tree navigation
Refactors animation code for sdoFlexPanel
Refactors move functionality for sdoFlexPanel
Controls the initial display of the tools panel via javascript
Adds preferences service to store user preferences

Uses the preferences service to store the size of the tools panel
Uses preferences service inside the language service