rwpogge/modsIDL: modsIDL Binocular Release

modsIDL was developed for reducing data obtained with the MODS1 and MODS2 instruments at the Large Binocular Telescope Observatory. The MODS were built with with major support provided by grants from the U.S. National Science Foundation's Division of Astronomical Sciences Advanced Technologies and Instrumentation (AST-9987045), the NSF/NOAO TSIP Program, and matching funds provided by the Ohio State University Office of Research and the Ohio Board of Regents. Additional support was provided by NSF Grant AST-1108693. It is designed as an add-on to work with the XIDL package developed by Jason X. Prochaska and Joseph Hennawi. The modsIDL pipeline was developed independently of the MODS instrument project as part of NSF Grant AST-1108693 which supported the Chemical Abundances of Spirals (CHAOS) project (PIs: E. Skillman, UM, and R. Pogge, OSU). It grew out of the need of the CHAOS project for an automated multi-object reduction and analysis pipeline for MODS data, and was intended from the start to be made available to the rest of the LBTO community as one of the "deliverables" of this NSF project. The modsIDL development project was led by Dr. Kevin Croxall, an OSU postdoc from 2012 until 2016.