Fix non wizard related webdriver tests and include them in the tomcat distribution tests

There are a few Webdriver tests in nuxeo-distribution-cap-tests that are not related to the wizard: ITLoginPage, ITFileUpload, ITModifyWorkspaceDescription, ITUsers.
For now they are:

• Broken due mostly to changes in action button names => We must fix them.
• Never run by QA : only ITTests in nuxeo-distribution-tomcat-tests is run (it extends ITWizardAndUpdateCenter in nuxeo-distribution-cap-tests so it only aims to tests the wizard and update center).

Maybe we could have (at least) two separate bundles:

1. nuxeo-distribution-tomcat-wizard-tests for tests that need to be run on a Nuxeo where the wizard is not done (for now it would only hold the ITWizardAndUpdateCenterTests)
2. nuxeo-distribution-tomcat-dm-tests for tests that need to be run on a Nuxeo where the wizard is done and configured with the DM module (it would hold all the non wizard related tests)