Making BranchesView refresh list on change

Remove the "New Git Install" button

Fix indentation issue in changes view for real hopefully

This reverts commit b7694c2e.

Changing GUILayout to EditorGUILayout because EditorGUILayout allows pasting

Fix to FindCommonPath to accommodate for the project root

Tweak threading and event raising in the repo manager

Small tweaks for branches UI

Fix to ChangesView tree calculation for single items

Adding some logging to the authentication process