Some micro-optimizations.

- [AV]sitA: Compute loading progress percentage without converting to float. Remove some 'else' clauses, adding 'return' where appropriate. That required moving the retrieval of the next notecard line near the top. A block has been left indented for clarity, and will be unindented in the next commit.
- [AV]prop: Remove some 'else' clauses, adding 'return' where appropriate. A block has been left indented for clarity, and will be unindented in the next commit.
- [AV]Xcite!: Change (string)llList2Integer to llList2String, after verifying that the elements in the list are always integers, and therefore this can't cause problems.
- [AV]root-RLV-extra: Remove unused event.
- [AV]faces: Change llListReplaceList with a replacement of [] to llDeleteSubList, to save one argument. Remove unnecessary 'else'.
- [AV]sequence: Comment out unused condition. It would be removed by the optimizer anyway, but this will hopefully help with clarity.
- AVpos-shifter: Change var++ to ++var (the optimizer would also do this anyway).

AVsitter2/Utilities/AVpos-shifter.lsl

@@ -30,7 +30,7 @@ web(string say, integer force)
     cache += say;
     if (llStringLength(llEscapeURL(cache)) > 1024 || force)
     {
-        webcount++;
+        ++webcount;
         llHTTPRequest(url, [HTTP_METHOD, "POST", HTTP_MIMETYPE, "application/x-www-form-urlencoded", HTTP_VERIFY_CERT, FALSE], "w=" + webkey + "&c=" + (string)webcount + "&t=" + llEscapeURL(cache));
         cache = "";
     }