fix leap year issue where I was assuming a year was 365 days despite …

…knowing better :)

health_by_repo.py

@@ -64,6 +64,8 @@
 import argparse
 import sys
 import pandas as pd
+import datetime
+import calendar
 from utils.augur_connect import augur_db_connect
 from utils.date_calcs import get_dates
 from utils.repo_info import get_repo_info, fork_archive, get_org_repos
@@ -93,7 +95,7 @@
 print('Parameters: Years =', years, 'Business Days', bus_days)
 
 # Get the dates for the analysis using the years argument if provided
-days = 365 * years
+days = 365 + calendar.isleap(year=datetime.datetime.now().year)
 start_date, end_date = get_dates(days)
 
 # Create the connection to the Augur database