Merge pull request #61 from CentralReport/release-0.2.0

Release 0.2.0
Minor improvements in bash scripts
Fixed "sudo -n" and "sudo -v" for OS X Mavericks

On OS X 10.9 Mavericks, the command "sudo -n" return 0, even if the sudo session is not alive.
Replaced by "sudo -v -p", with a custom message.
Updated "NEWS" file with #84 (Fixed "sudo -n" and "sudo -v" for OS X Mavericks)
Merge pull request #84 from CentralReport/sudo-mavericks

Fixed "sudo -n" and "sudo -v" for OS X Mavericks
Updated NEWS file for the release 0.3.0
Merge pull request #83 from CentralReport/release-0.3.0

Release 0.3.0
Fixed the installer when is called from the online script

When the user uses the online installer (with "curl http://static.centralreport.net/installer | bash"), the CLI Manager (in "Wizard mode") could not start.
We force the use of  /dev/tty in input for the urwid library.
Merge pull request #86 from CentralReport/fix-manager

Fixed the installer when is called from the online script [0.3.0]
Merge remote-tracking branch 'origin/develop' into feature-tests