v1.0 - Original program.
v1.01 - Minor update to fix a bug.
v1.1 - Allowed user to switch fitting an AGN or host component off.
v1.11 - Minor bug fix regarding the use of the 'break' keyword.
v1.2 - Version 1.2 Herschel 250um, 350um and 500um band filters have now been added. Changes to decompir_func.pro to more easily accomodate data containing both infrared spectra and photometry.