+ Implement a variant of astman_get_header() to return the first or

+ Implement a variant of astman_get_header() to return the first or
  last match, and possibly skip empty fields.  The function is useful
  (and used here) when a form submits multiple 'Action' fields to the
  Manager.

  This change slightly modifies the current behaviour, but only in the
  case the user supplies multiple 'Action: ' lines and the first
  ones are empty, so the change is totally harmless.

+ Fix style on a couple of "if (displayconnects)" statements;

+ Expand a bit the 'Manager Test' interface, to make it slightly
  more user friendly. But also comment that the HTML should not
  be embedded in the C source.

None of this stuff needs to be applied to 1.4.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@117297 65c4cc65-6c06-0410-ace0-fbb531ad65f3