Added skel utility hash2string function to enable Params' header testing

lib/SugarTrail/STM.pm

@@ -86,4 +86,14 @@ sub get_current_revision {
     return time;
 }
 
+sub mkmymime {
+    my $d = shift;
+    my $d1 = "; "; my $d2 = "=";
+    my @t;
+    foreach (sort keys %$d) {
+        push @t, $_ . $d2 . $d->{$_};
+    }
+    return join $d1, @t;
+}
+
 1;