chore: add safari10 to browser-providers (#2873)

* This adds Safari v10 (from Saucelabs) to the browser-providers and marks it as an optional run in the CI.

As requested in #2823

Author: devversion

test/browser-providers.js

@@ -18,11 +18,12 @@ const browserConfig = {
   'Android4.1':   { unitTest: {target: null, required: false }},
   'Android4.2':   { unitTest: {target: null, required: false }},
   'Android4.3':   { unitTest: {target: null, required: false }},
-  'Android4.4':   { unitTest: {target: 'SL', required: false }},
+  'Android4.4':   { unitTest: {target: null, required: false }},
   'Android5':     { unitTest: {target: 'SL', required: false }},
   'Safari7':      { unitTest: {target: null, required: false }},
-  'Safari8':      { unitTest: {target: 'BS', required: false }},
+  'Safari8':      { unitTest: {target: null, required: false }},
   'Safari9':      { unitTest: {target: 'BS', required: false }},
+  'Safari10':     { unitTest: {target: 'SL', required: false }},
   'iOS7':         { unitTest: {target: null, required: false }},
   'iOS8':         { unitTest: {target: null, required: false }},
   'iOS9':         { unitTest: {target: 'BS', required: true  }},

test/remote_browsers.json

@@ -59,6 +59,12 @@
     "platform": "OS X 10.11",
     "version": "9.0"
   },
+  "SL_SAFARI10": {
+    "base": "SauceLabs",
+    "browserName": "safari",
+    "platform": "OS X 10.12",
+    "version": "10.0"
+  },
   "SL_IOS7": {
     "base": "SauceLabs",
     "browserName": "iphone",