Remove graphicalrc
Add i3 configuration
[bashrc] Increase history size to 5000
[git] Use 'diff3' merge conflict format
[volume.sh] Disable notifications for now

Since we don't have the capability to replace the existing notification
(we can only queue new ones).
Add fruitron-sync-music script
[i3] Add shortcuts; remove window shadows; remove redshift

Note: redshift is now run by our lightdm display-setup script.