Implemented all known endpoints

Renamed ShiftRequest to ShiftStats
Implemented tests
Bumped version for release

example.js

@@ -1,8 +1,11 @@
 const ShiftRequest = require('./index')
 
 let s = new ShiftRequest()
+// with promises
 s.login().then(() => {
   return s.divisionStandings(4702)
-}).then((standings) => {
+}).then(async (standings) => {
   console.log(standings.teams)
+  // with async/await
+  console.log((await s.gameGoals(166658, 'home')).home_goals)
 })