Added GPL stuff, copyleft holders and some very minor tweaks.
treeec9e2cdad01a73e03819dac81675c0b5e63e7b03
drwxr-xr-x - backend
drwxr-xr-x - database
drwxr-xr-x - irreco-metapack
drwxr-xr-x - irreco
drwxr-xr-x - irtrans
drwxr-xr-x - script
drwxr-xr-x - themes