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Renamed row keys for clarity
fixing priam-agent for backporting to 1.1 branch.
had to update to guava 12.
fixed removeNode() which doesn't exist in c* 1.1 (only 1.2).
repair doesn't have LocalDcOnly option in 1.1.
Merge pull request #178 from jasobrown/1.1

backport of @randgalt's priam-agent code to 1.1 branch