Add a button to the AppCafe so that users can install apps into a new jail. The button is automatically enabled/disabled/visible as appropriate, although the list of running jails is not getting updated on the UI yet.
Clean up the appearance of the AppCafe so the new jail creation properly refreshes the list of running jails, and make sure the install buttons on the details page are always right-aligned on the page (so the buttons are not massive if the app version number is long).
Merge branch 'master' of github.com:pcbsd/pcbsd