Removed elevationPath,  should pick it up from OSSIM Elevation Manager now.
Added spinners for the layer loading.
defaulted background color to white for hillshade
Loading data from local rather than url.
Added checks for PSM to try and prevent picking bad images:

1.  Must be 1 image with a single band
2.  Must be 1 image with 3 or more bands
3.  Pan image must have lower gsd than Color Image

Also fixed bug with spinner.   Wasn't centered.
Switched back to OpenLayers light
Changed hist-op keyword to hist_op to match change in OSSIM Chipper code
Fixed a few typos regarding resamplerFilter  (thanks Garrett)
Switched from light back to full OpenLayers.   Seems to mess up
pop up map.   Have to look into that.
Added an intersect constraint for 2CMV and PSM ops.
If the selected images do no intersect,  it will pop up
error message
Added piwik tracking and config
Added a cache on the thumbnails.    Should store 'em in the
the omar cache directory but using the ortho prefix.
Forgot these as part of the Piwik checkin
Added a column formatter for the Geometry.   Shows the BBOX.
Another piwik trackker
Added piwik varialbes
Merge branch 'master' of https://github.com/radiantbluetechnologies/omar
Increased default num zoom levels
Made the spinner a singleton shared by all layers instead of a separate
one for each.   A counter keeps track of how many layers are loading and
dismisses the spinner when that count becomes 0.
Merge branch 'master' of github.com:radiantbluetechnologies/omar
Fixed a time issue when selecting the Acquisition Date criteria
Added styling to include width and height to be 100%