#1330716 by dereine: Take sure that using a view via views_get_current_view doesn't break the site. If it's empty throw some helpful debugging message

#1331032 by dereine: Hide rewriting if the value of a field is actually empty by default. That's maybe causes some views but sure we are doomed anyway. Additional fix it let the custom block actually always display something

Conflicts:

	includes/view.inc

#1316932 by dereine: Reorder view execution and title generation, so the title can use the tokens from actual result values.

#1307162 by cmurph: Check whether an argument is empty or not when loading the taxonomy term for the title

#1314306 by Hanno: Don't translate html-tags, because translators might get confused and the user should really see the original tag all the time.

#1090098 by dereine, chx: Convert database views which were defaulted in d6.2 and exported to views3. Sadly this only works for exported

Now the conversion for the default case works automatically.
Additional the code itself were simplified quite a lot and some comments
got added.

#1302494 by defr: Don't alter the value_options directly for flatten the options in in_operator filter

#1109108 by szantog: Handler translation keys should use the id instead of the field to have a unique key for multiple fields