Cleaning README.

TESTING.md

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+## Unit Frontend
+
+- `brew install phantomjs`
+- `gulp karma`
+
+## E2E Frontend
+
+### On first run
+- `gulp webdriver-update`
+
+### Chrome Local STF
+- Connect a device
+- Run stf
+- `gulp protractor`
+
+### Multiple Browsers Local STF with a specific suite
+- Connect a device
+- Run stf
+- `gulp protractor --multi --suite devices`
+
+### Chrome Remote STF
+- `export STF_URL='http://stf-url/#!/'`
+- `export STF_USERNAME='user'`
+- `export STF_PASSWORD='pass'`
+- `gulp protractor`