Added additional verbosity

Added additional debugging verbosity to announce percentages. Also
cleaned up some trailing tabs.
Enabled 1-day scans

Allowed -eday to not be set in order to allow for one day scans.
Previously you had to set -sday and -eday with -eday being one day
later.

However, xrange() is not inclusive of the second value given which
leads to confusion over setting the end day and not having the end day
returned in the results.
Removed merging of traces

I removed the merging of traces because it is both unnecessary and
skews the results.

I found that the sum of the individual traces’ npts did not coincide
with the merged trace’s npts; the latter would reflect a gapless day,
leading to incorrect availability percentages.
Added the ability to query Golden's internal CWB

Added the ability to query Golden’s internal CWB, named PCWB, for
private CWB.
Renamed NEIC CWB to GCWB, for Golden CWB.
Added start time and end time to scan

Added commands to print the start time and end time of the scan.
Fixed issue with verbosity if no data on /tr1/

It now prints the visual separator regardless of if there is data on
/tr1/ when the --debug flag is on.
Added flexibility for scans for days not on /tr1/

Since data is only kept on /tr1/ for 100 days, our ability to do
historical data availability comparisons is limited. I have added a
workaround to skip /tr1/ and base the query off of /xs0/ or /xs1/.