Fixing false assumption in TuneCassandra. Previously, there was logic to guard
against yaml config settings that had been added or removed from different versions. This was tested
by adding a null check to see if the setting existed in the yaml that was read in. Unfortunately,
if a property was commented out in the yaml (yet still compltetly valid as a setting) the entry would
not be present in the map that snakeyaml produced, and hence you could never write out that setting.
Basically this was a poor man's way to avoid branching. Now that we branch in priam, that is no longer necessary.
Merge pull request #162 from jasobrown/1.1

updating target cassandra version
Filtering/ignoring Dummy nodes as seeds
Merge pull request #166 from sagarl/1.1

Filtering/ignoring Dummy nodes as seeds
Merge remote-tracking branch 'upstream/1.1' into 1.1
ffs, the version number again.
why can't this build system get out of the way?