Renamed main logger script to match the official name and to remove SH file extension
Updated author information and added GPL License
Changed display count flag from d to c to better match what it is

"D" was originally chosen for "Display Length" but after usage, "Count"
is more appropriate for how many lines to display.
If no path variable is set for log file, it's created in home directory
Updated last updated date
Merge branch 'dev'