Add Travis config (#302)

The tests were refactored to run Spring annotations instead of ApplicationContextHelper to mitigate the problems of Camel Context loading. The refactored tests are all part of AppContext06TestSuite.

Disabled PdfBoxContentTransformerTest as it requires installation of additional software on the build agent. The test is deprecated already.

src/test/java/org/alfresco/repo/rendition2/AbstractRenditionIntegrationTest.java

@@ -115,10 +115,6 @@ public abstract class AbstractRenditionIntegrationTest extends BaseSpringTest
     @BeforeClass
     public static void before()
     {
-        // Ensure other applications contexts are closed...
-        // Multiple consumers not supported for same direct vm in different Camel contexts.
-        ApplicationContextHelper.closeApplicationContext();
-
         // Use the docker images for transforms
         System.setProperty("alfresco-pdf-renderer.url", "http://localhost:8090/");
         System.setProperty("img.url", "http://localhost:8091");