Verbose provisioning
Detect APP_USER using whoami
Detect when running on Travis-CI
Detect APP_USER_GROUP
Revert "Detect APP_USER_GROUP"

This reverts commit 68f216539985828ec4ac5656de63eb29ecbe90ed.
More debugging
Crank up the debugging output level
Ensure APP_USER is travis for Travis builds
Use absolute paths for /app/.env
Don't run provision.sh as sudo
Run provision and rake as sudo
remove dependance on tree
cd into /app/app before running rake
source /app/.env
Run bundle before running rake
Ensure app is running
specify location of gemgile
Ensure /app/.env is also sourced for root
Run sudo -E to keep ENV vars
run bundle