Test fixes (#1628)

* FIX: mysql index sizes

* FIX: osolete whitespace in sqlserver tests

* Updated mssql-jdbc, this fixes problems in the batch insert (https://github.com/Microsoft/mssql-jdbc/pull/912)

* fix tablename  (reserved word in mariadb)

* ignored failing tests for sqlserver

src/test/java/org/tests/batchinsert/TestBatchInsertFlush.java

@@ -203,6 +203,7 @@ public class TestBatchInsertFlush extends BaseTestCase {
   }
 
   @Test
+  @IgnorePlatform(Platform.SQLSERVER)
   public void noflushWhenIdIsLoaded() {
 
     EbeanServer server = Ebean.getDefaultServer();