Merge pull request #15 from sorribas/master

Add sorting to the list and ps commands.
added deploy notice about tailing
0.1.16
tty awareness. fixes #12
always exit on deploy error. workaround for #4
0.1.17
remote key path is abs
0.1.18
removed bad ref to env parser
-i can start with /
0.1.19
unspin exits the process onerror
0.1.20
exiting on upload error
0.1.21
another key file location fix
0.1.22
can resubscribe after close
0.1.23
adding log stream