Make retrofit callbacks better by simplifiing them so that all errors are handled in the onAllError block.

Fix the users fragments and activities to show loading when they are loading more users to show (duh)

Show Snackbar when text is copied instead of toast. Change some other Toasts to Snackbars. Fix palette to be more efficient.

More progress on allowing the user to change a project members access level, as well as changing a group members access level

Improve transition between user list and user detail. Fix the Group activity so that it allows overlay of the navigation view in the drawer like it does in the projects activity.

Fix issue with not being able to add user to group. Fix empty state for issues fragment. Remove ColorUtils in favor of Easel, the coolest library ever

Change app navigation and structure to where you load projects as needed and initially are presented with a project picker. WIP, but I want to commit since this is going to touch so many areas.