Do not try WebDav mode if owa url ends with /ews/exchange.asmx

git-svn-id: http://svn.code.sf.net/p/davmail/code/trunk@2256 3d1905a2-6b24-0410-a738-b14d5a86fcbd

src/java/davmail/exchange/ExchangeSessionFactory.java

@@ -139,7 +139,7 @@ public final class ExchangeSessionFactory {
 
             if (session == null) {
                 String enableEws = Settings.getProperty("davmail.enableEws", "auto");
-                if ("true".equals(enableEws)) {
+                if ("true".equals(enableEws) || poolKey.url.toLowerCase().endsWith("/ews/exchange.asmx")) {
                     session = new EwsExchangeSession(poolKey.url, poolKey.userName, poolKey.password);
                 } else {
                     try {