:Fixed tokens in title attribute - was not using correct variable to get the title attirubute value.

bug report #626932 by jtsnow,jcfiala:_link_sanitize now checks that field attributes are an array before adding defaults to them.

bug report #628902 by strangeways,jcfiala: Fixed removing 'nofollow' from the rel array, which had been generating a preg_match error.

bug report #376818 by pauline_perren,jeffschuler,dropcube: extended the url field to accept 2048 characters, god help us.

task #438770 by jcfiala: Fixing setUp() calls in tests to remove inclusion of 'views' module where not necessary.

User interface #335281 by thePanz, jcfiala: Now if the title matches the link title, the title is not included in the link.

bug report #660138 by chris_bbg888: Changing validation to include letters with umlouts.

bug report #625552 by jcfiala: removed default values from field value attributes so that the field attributes can properly override them.  Also added simpletest to test the fix.