set version of yapsy to 1.8
Merge pull request #9 from jwsy/patch-1

set version of yapsy to 1.8, to be consistent with the wiki documenation
Fixing issue with starting cloudbase due to incorrect arguments being passed (thanks ccosmonaut!)
add support for launching spot instances (hadoop plugin only); fix bug with launch-master; add missing "self" in cassandra plugin
Fixing Cloudbase Cluster Launch Issues

Added enhanced testing to ensure cloudbase is up and running once the
start-cloudbase code has run. This fixes launching clusters with
PROVIDER=cloudbase and "start-cloudbase" calls. Retry on cloudbase
setup is called once a minute if a failure to start occurs. The root
cause of the issue seems to be slow AMI tablet servers not accepting
the start-server command from the master node on the first try (even on
slow AMIs full start seems achieved in under 5 tries now).
Bumping version number for my enhancement

This is for my previous commit for the cloudbase launch/start stability
fix.
Adding installation requirements to setup.py
Updating README to have a simple-to-use installation procedure.  Also removing requirements.txt - let's just use 'install_requires' in setup.py for this now.
Changing Readme to be markdown-formatted.
Cloudbase Startup Fix

Another fix for the cloudbase launching. This time a problem can occur
with the init script not functioning correctly. The fix is to
reinitialize the install in hdfs. The code detects the condition and
then installs again.
Another Cloudbase startup fix

Fixing issue with as_user not having permissions to modify the ssh_dir
files. This was causing keys to be unusable and overwritten into
infinity.