First pass after finished coding.  Beginning to unit test.
Getting networkonmainthread exception
Commit before making refreshEarthquakes() a runnable
Android forces you to do internet activity, HttpURLConnection etc., on
its own thread.  Consequently, refreshEarthquakes was moved to its own
runnable thread and now the program works.
Add preferences screen - part 1

Add a preference screen to the earthquake program.  Had to put
updateEarthquakes activity on its own runnable thread.
Renamed from Chapter_7_Earthquake_W_Pref_1 to
Chapter_7_Earthquake_W_Pref_2
changed names

Renamed from Chapter_7_Earthquake_W_Pref_1 to
Chapter_7_Earthquake_W_Pref_Legacy
renamed to Legacy

Renamed from Pref_1 to Pref_Legacy
Added preferences to store e-mail data
Preferences work; save changes

Added preferences to store e-mail data.  Now saving changes before
adding link to CVENT registration in encoder
e-mail preferences for scanner added

e-mail preferences for scanner added