Added missing files.  I suspect most of these aren't ever used, just automatically loaded, but can't see where.
upgrade to Cassandra 1.2.18
[BZ 1118063] Add unit test to check for proper ResourceKey parsing
Merge pull request #88 from jsanda/cassandra-1.2.18-upgrade

Upgrade to Cassandra 1.2.18
Merge pull request #87 from alns/BZ1118926-MissingIcons

BZ1118926 Added missing files.  I suspect most of these aren't ever used, just automatically loaded, but can't see where. + utilizing the new progressbar when navigating through resource tree (before the spinner was displayed directly in the resource tree which led to tree component moving up and down)