Download Firefox over HTTPS, check for /etc/debian_version

The setup script was not running on my Debian Wheezy system as it
did not have an /etc/lsb-release file, or a matching file with a
DISTRIB_ID line.

The firefox binary archive was being downloaded over http without
any cryptographic verification.
Catch when a users codename contains invalid characters
Format displayed timestamps in a more readable way.
Merge pull request #564 from DonnchaC/setup_script

Download Firefox over HTTPS, check for /etc/debian_version
Merge pull request #566 from DonnchaC/readable-timestamp

Format displayed timestamps in a more readable way. Fixes #559.
https://trello.com/c/oWN0SW17 removing jquery-2.0.3.min.js and localForage.js from AppArmor since we don't use them any more.
Changing version.py 0.2.1 to 0.3
Standardise flash message about unknown codenames
Merge pull request #563 from DonnchaC/invalid_codename_handling

Catch when a user's codename contains invalid characters. Fixes #548
Fix spacing bug on reply button
Merge pull request #567 from charltonaustin/develop

https://trello.com/c/oWN0SW17 removing jquery-2.0.3.min.js and localFora...
Merge pull request #573 from DonnchaC/fix/reply-button-display

Fix spacing bug on reply button
Removed unmodified ossec files to make upgrading the ossec files easier
Merge branch 'ossec-cleanup' of github.com:dolanjs/securedrop into ossec-cleanup