Merge pull request #1974 from hypothesis/1973-year-singular

Use a singular time expression one year

h/static/scripts/helpers/time-helpers.coffee

@@ -14,6 +14,7 @@ BREAKPOINTS = [
   [2 * day,    'yesterday',      day   ]
   [month,      '{} days ago',    day   ]
   [year,       '{} months ago',  month ]
+  [2 * year,   'one year ago',   year  ]
   [Infinity,   '{} years ago',   year  ]
 ]
 

tests/js/helpers/time-helpers-test.coffee

@@ -17,6 +17,9 @@ FIXTURES_TO_FUZZY_STRING = [
   [27 * hour, 'yesterday']
   [3 * day + 30 * minute, '3 days ago']
   [6 * month + 2 * day, '6 months ago']
+  [1 * year, 'one year ago']
+  [1 * year + 2 * month, 'one year ago']
+  [2 * year, '2 years ago']
   [8 * year, '8 years ago']
 ]