Created node namespace for commands.
Added install command to install DB.
Updated the readme to include instructions on installing the database.
Clarified readme introduction.
Added reference to GitElephant.
Corrected composer install command.
Attempt to query database to detect if it exists.
Corrected crontab command.
Handle user permission errors.
Renamed DeployCommand.
Throw exception if there are no releases.
Improved upgrade process.
Removed unused parameter.
Compare commits on branch to determine whether to upgrade.
Corrected pull command.
Merge branch 'release/v0.2.0'