ACCUMULO-498 Applying patch to retrieve ColumnVisibility from a Key as a ColumnVisibility instead of only a Text.


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ACCUMULO-1053 allow I/O exceptions to propagate out to FATE

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fix spelling in a comment

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make debug message accurate and useful

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ACCUMULO-1053 propogate exceptions only if append approach to lease recovery fails

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ACCUMULO-1053 ACCUMULO-498 merge to trunk

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