Not all BrowserTypes are present in RemoteWebDriver. Atleast Safari for now will help!

**Citrus Version**
2.7.6

**Expected behavior**
Expecting Safari, Opera, Android Webview as BrowserTypes in Switch case under method - createRemoteWebDriver(String browserType, String serverAddress) in class SeleniumBrowser

**Actual behavior**
BrowserTypes such as Chrome, IE, Firefox alone are present.

Start in the SeleniumBrowser class at createRemoteWebDriver(String browserType, String serverAddress), where the issue says only Chrome, IE, and Firefox are handled. Compare the existing BrowserTypes and determine how Safari, Opera, and Android Webview should be represented. Done means the requested BrowserTypes are supported by the remote-driver switch and the existing tests pass.

Written by the indexing model from the issue text.