eclipse: removed old junit from classpath. Smack testcases need junit 3.8.2 or higher in order to run correct

git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@13433 b35dd754-fafc-0310-a699-88a17e54d16e
PubSub SubcribeForm: Use new StringUtils.formatXEP0082Date to get the correct date string. Note that the previous used SimpleDateFormat "yyyy-MM-dd'T'HH:mm:ss.SSSZ" did not produce XEP-0082 conforming strings, since Z is replace with e.g. '+0100' whereas it should be '+01:00'.

git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@13434 b35dd754-fafc-0310-a699-88a17e54d16e
VCardTest: Use VCard.equal() in order to test equality and not the String representation, since the elements within the vcard could be in a different order

git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@13435 b35dd754-fafc-0310-a699-88a17e54d16e