In ThriftColumnFamilyQueryImpl<K, C>, the function
public RowSliceQuery<K, C> getRowSlice(Iterable<K> keys) {
called itself, leading to a StackOverflow. This fixes
this. However, it is unclear why both getRowSlice
and getKeySlice exist, as one seems to just be an alias
for the other
Merge pull request #202 from splittingfield/master

StackOverflow in ThriftColumnFamilyQueryImpl<K, C>