Updated help text to support new file flag
Added file path setting to the option processing. Resolves #15
Updated last updated timestamp
Added timezone offset from GMT in hours to time output

This resolves #14 and makes the script work across time zones and
daylight saving changes. Previously you'd never be able to tell when an
entry was made relative to GMT.

This also provides a little insight into a general area of the world for
where an entry was made.