add disk-space routes and tests for devices and disk
remove trace
update tests
log user before add device
Merge pull request #57 from jsilvestre/master

Fixed: app crashing when stopped and getting hit by multiple requests
Merge remote-tracking branch 'upstream/master'
Merge pull request #56 from poupotte/master

Add disk-space routes and tests for devices and disk
Fixed: human readable error is only sent to browser. Status code is properly sent along when a template is rendered.