Merge pull request #138 from iconara/cassandra_init_fix

Silencing Cassandra output when its starting up
Cassandra startup script now using start-stop-daemon properly
Cassandra service starting as the cassandra user
Removing unnecessary setup from the Cassandra startup script
Removing all hard-coded paths from the Cassandra startup script
Stylistic changes to the Cassandra startup script

Whitespace and comments moved and removed
Removed the copyright statement at the top of the Cassandra startup script

I've now rewritten almost every line, this comment no longer applies.
Fix for when start-stop-daemon --status is not supported