Tweak submit_image_analysis.sh to handle wildcards, rather than operating on whole directories of images
Add cluster_position.py, a class for computing cluster positions and shapes.

Erik's code does not include an estimate for the mean position of the cluster, so this class is meant to be used for that.

The contents of this class were mainly pulled from the dbscan_analysis.ComputeClusterPosition method in dbscan_analysis.py. I will
delete that method and instead add an interface to this one.
Added interface to cluster_position class inside dbscan_analysis.
Fix a bug in cluster_position.py, and switch dbscan_analysis.py over to using it.
Removed old cluster position code from dbscan_analysis.
Added position info into shawcluster DataFrame.
In shawcluster_analysis, zero out negative pixels in non-smoothed data in order to avoid problems with cluster position finding.

This does not affect the energy estimates of the cluster, as the code already contains code to ignore negative pixels.
Add in a computation of the average pixel count and fraction of total image intensity for clusters found by shawcluster_analysis.
Fix a bug in dbscan_analysis.py, where the neighborPixel arrays are all the same object, and thus mutable by other operations.

This reduces, but does not eliminate, the number of clusters found with counts below threshold.
Add a debugging method to dbscan_analysis.py.

This method computes the sum counts of a cluster
Fix a number of bugs in dbscan_analysis.py, including a refactoring of its expandCluster method. The code now appears to work well and does not find clusters smaller than specified.

Also add a new array that marks pixels which can exist in multiple clusters --- however this array is not yet used, and only tracks two clusters at a time.

Also remove a number of .pyc and backup files, as there is no need to keep these in version control.
Commit a few small changes for sync reasons.
Small update in prep of syncing with wit.
Merge branch 'master' of wit.lanl.gov:/home/ronquest/Work/SLIMER