OO-296: fixed wrong alias in checkUploadFileArtefactWithinBinder() and fixed missing selector in artefactExists().

OO-296, non-jira: fixed extended version of FunctionalArtefactTest and various fixes related to accelerated test cases.

non-jira: fixed some utility methods using unsafe waitForPageToLoad method and added FunctionalCourseUtil field to FunctionalRepositorySiteUtil.

non-jira, OO-348: Updated tests to use instantiated site utility classes from FunctionalUtil. Fixed unsafe method clickRadio in FunctionalUtil.java.  Implementing checkCreateSubcategory test therefore I have written createCatalogSelector and createCatalogSubcategory method.

OO-296: fixed ugly sleep which was needed after creating structural element in eportfolio. The cause was some ajax code which wasn't done as the new browser calls were executed.

OO-296: Fixed filling in tags in wizard of adding artefacts to eportfolio. Fixed functional methods to work with firefox.

OO296: implemented methods to add text or upload file artefact and create learning journal. Additional utility methods had implemented as well.

renamed FunctionalResourcesSite to FunctionalRepositorySiteUtil and therein renamed some fields and methods, too.
Began to implement FunctionalArtefactTest.
Some Bugfixes.

The work on FunctionalResumeTest hasn't finished, yet.

created FunctionalResumeTest class and some utility methods