- Added lronachitreg and lronac2mosaic.  There are a few issues to be resolved with each of them.

Scott
- Got crop and image save functionality working

Scott
Tools: Switch lronacjitreg to DiskCacheView

Also:
- Removed some commented code
- Switched to using DiskCacheView
- Modifed output file formatting
-Fixed bugs in lronac2mosaic script
- Added auto-pvl generation option

Scott
Tools : Lronac2mosaic perform lronaccal to input

- Fixed bugs in lronac2mosaic script
- Added auto-pvl generation option
Tools: Lronacjitreg with less memory allocations
Tools: Added ipfind code to lronacjitreg
Tools: Modified lronacjitreg to auto-compute the search region.
Tools: lronacjitreg now takes search roi as optional input.
Tools: lronac2mosaic.py script cleanup.
Tools: Fixed bugs introduced with ipfind introduction
Tools: Removed unhelpful extreme value filter
Tools: Improved lronacjitreg text output.
Tools: lronac2mosaic.py - Removed hardcoded file path.
Tools: Fixed sign error in lronacjitreg
Tools: Debugging lronacjitreg failure on subsampled inputs.
Tools: Blocked lronac2mosaic.py from processing multiple files.
Tools: Made lronac processing tools more robust to images with negative values.
TOOLS: Small compile fixes
Tools: lronacjitreg has filter on correlator inputs