Delete htaccess-backup
Add LICENSE file
Update .gitignore files

* Ignore vim swapfiles
* Ignore every file inside of Updian's runtime subdirs
Add CONTRIBUTORS file
Change serverlist format to JSON

In preparation of upcoming changes the format of the serverlist file is
changed to JSON because the old format of colon separated values makes
it unnecessarily hard to add additional fields as you have to specify
each field before it (even if the default value would be fine).
The new script convert_serverlist.php takes care of converting your old
server.txt to the new format. After executing it (check permissions on
your web directory if you want to execute it through the web browser)
you have to adjust your config.php to point to the newly created JSON
file.
Bump version to 0.5
Remove default user for HTTP basic authentication
Implement Updian backend functionality in python
Rename fmt_python_v1 to fmt_json
Add concurrency configuration option

The new option controls how many concurrent ssh connections are
established. A process is forked for every connection, so be careful not
to set this value too high.
Fix shell starting as login shell

Starting bash with `-l` creates problems on some server installations
(see <http://docs.fabfile.org/en/1.6/faq.html#why-do-i-sometimes-see-err-stdin-is-not-a-tty>).
Fix fabric choking on grep's return value
Implement connection through a gateway server
Implement backend auto-detection
Add updiancmd convenience script

The updiancmd script provides a simple to use interface to starting the
cronjobs and converting the server list from the old CSV-based to the
new JSON encoded format.
Remove automatic server list conversion from cronjobs
Add PAGER environment variable to apt-get upgrade

apt-get shows changelogs using the pager which causes the upgrades to
hang.
Create option to allow unauthed packages with apt-get

ref: commit 01d591ef543530d03bc763cff2ebce6d3be99947
We don't really want --force-yes. But there are use cases for allowing
unauthenticated packages to be installed. So we added this configuration
variable that defaults to false (disallow unauthed packages).
Disable fabric's pty allocation for the update command
Remove PHP files