Feature/contitional test runner (#1132)

* FIX: warnings (add generics, overrides, fix imports) - should be no effecive code change

* replaced deprecated methods by default methods

* FIX: more compiler warnings

* FIX more warnings - no code changes

* FIX: deprecated call to JsonParseException

* Remove unused code, check unused variables

* ADD: ContitonaltestRunner to skip tests for certain platforms

* Use annotations to control on which platforms a test shoud run

* FIX: compile errors

src/test/java/io/ebeaninternal/server/cache/DefaultServerCache_RunEvictionTest.java

@@ -30,7 +30,7 @@ public class DefaultServerCache_RunEvictionTest {
     this.cache = createCache();
   }
 
-  @Ignore
+  @Ignore("test takes long time")
   @Test
   public void runEvict() throws InterruptedException {