Add basic integration tests for all normally-accessed pages

[moseshll]

CGI::Test would be the obvious starting point but in order to collect coverage stats the CGI should not be run in a child process. This is hacky but simple: given a $url fragment like 'p=review' we can do something like

  local $ENV{QUERY_STRING} = $url;
  local $ENV{REQUEST_METHOD} = 'GET';
  local $ENV{GATEWAY_INTERFACE} = '1';
  chdir "$ENV{SDRROOT}/crms/cgi";
  my ($stdout, $stderr) = Capture::Tiny::capture {
    eval {
      do './crms';
    };
    ok(!$@, "no error with $url");
  };