Functionality to control Tracing log level from SettingsView

# Conflicts:
#	src/UnityExtension/Assets/Editor/GitHub.Unity/UI/SettingsView.cs

First alpha

[WIP] Adding EULA.txt and CREDITS.txt

Creating a dedicated "git lfs install" Task

Making BranchesView refresh list on change

Hook up settings view lock list to the real data, and also the project window.
Add context menus for locking and unlocking.
Add remote configuration to the settings view so it's possible to push a new repository
Fix settings view refresh
Move locks out of the status results, some places don't need that data (changes view doesn't have it anymore, for the moment)

Remove the "New Git Install" button