Add support for servername option (#113)

Author: petar-iv

lib/protocol/ConnectionManagerState.js

@@ -15,7 +15,7 @@
 
 module.exports = ConnectionManagerState;
 
-var ENCRYPTION_OPTIONS = ['pfx', 'key', 'cert', 'ca', 'passphrase', 'rejectUnauthorized', 'secureProtocol', 'checkServerIdentity'];
+var ENCRYPTION_OPTIONS = ['pfx', 'key', 'cert', 'ca', 'passphrase', 'rejectUnauthorized', 'secureProtocol', 'checkServerIdentity', 'servername'];
 var CONNECT_OPTIONS = ['user', 'password', 'assertion', 'sessionCookie'];
 var MULTIDB_OPTIONS = ['databaseName', 'instanceNumber'];
 

test/lib.ConnectionManagerState.js

@@ -175,7 +175,7 @@ describe('Lib', function () {
 
       it('should set the encryption options properly', function () {
         var correspondingProperty = 'encryption';
-        var optionsList = ['pfx', 'key', 'cert', 'ca', 'passphrase', 'rejectUnauthorized', 'secureProtocol', 'checkServerIdentity'];
+        var optionsList = ['pfx', 'key', 'cert', 'ca', 'passphrase', 'rejectUnauthorized', 'secureProtocol', 'checkServerIdentity', 'servername'];
         var returnedValue = { ca: 'CA certificate' };
         var whichCall = 1;