Logging

Logging is done using ` logger = logging.getlogger('obsinfo') `

It looks like this logger is setup in each command-line code, which are all found in the main directory (should we change it to scripts?)

Should change to have one logging routine/class that is called by each of the scripts. This routine should setup one level for writing to the screen and another for writing to the file, which should have a time-and-script coded name.