Merge pull request #27 from mew-cx/mewcx_day_of_week_fix

Fix day-of-week string indexing to obey Python definition

Author: FoamyGuy

examples/ds1307_simpletest.py

@@ -14,7 +14,7 @@
 rtc = adafruit_ds1307.DS1307(i2c)
 
 # Lookup table for names of days (nicer printing).
-days = ("Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday")
+days = ("Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday")
 
 
 # pylint: disable-msg=using-constant-test