CF tasks launcher

Task lunched should be implemented for CF using https://github.com/hutnikau/job-scheduler

Format:

php app/bin/cf_launcher.php [-h] [-c CRON_RULE|-i ICALENDAR_RULE] [-l LEFITEME] [-o OUTPUT_FILE] COMMAND

Where:

• -h - help (list of options)
• -c - cron rule string
• -i - iCalendar rule string
• -l - lifetime (seconds) - launcher should die when lifetime is exceed
• -o - files to keep a COMMAND output (STDOUT if not specified)
• COMMAND - command to launch with "exec" function

Launcher launches COMMAND only once if neither cron nor iCalendar rule is specified. In the other case it launches COMMAND according to the specified rules.