added bootstrap.py to randomly generate ssh keys before booting things up. this now generates conf/gtstream-env.sh from conf/gtstream-env.sh.in. TODO: add command-line args to bootstrap.py
added opentsdb to the install script and fixed a few bugs
fix a bug in sync_node.sh
forgot to remove a comment
modified install to allow skipping lengthy install for opentsdb
Merge branch 'live_testing'

Conflicts:
	conf/gtstream-env.sh.in