Fixed CTNearestNeighbors Code.

The following "best candidate" showers were found to be missing from the list compiled by analysiscut2:

There was a bug in the CTNearestNeighbors code which affected the TRMS calculation when there were more than 3 nearest neighbors hit.

New CTShower code (V. 2.42).

The fix actually does not seem to make a lot of difference. A small number of showers appear/disappear, and some have their TRMS changed slightly, but the list is mostly the same.

Old list

New list (In progress.)