in "tag checker rules list" make it obvious which downloadable rules are already used

[mkoniecz]

What steps will reproduce the problem?

1. F12
2. Validator settings
3. Tag checker rules
4. Attempt to check which ones from left are already used

What is the expected result?
It is possible to do it in easy way.

What happens instead?
It is not indicated which downloadable rules are used, both list are sorted in a different ways. On top of it entries in the left and right list have different heights.

Proposed fix:
Sort both list using the same order.

Please provide any additional information below. Attach a screenshot if
possible.

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2014-10-05 01:34:55
Last Changed Author: Don-vip
Revision: 7599
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Relative URL: ^/trunk
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2014-10-05 01:24:20 +0200 (Sun, 05 Oct 2014)
Last Changed Rev: 7599

Identification: JOSM/1.5 (7599 en) Linux Ubuntu 14.04.1 LTS
Memory Usage: 264 MB / 889 MB (27 MB allocated, but free)
Java version: 1.7.0_67, Oracle Corporation, Java HotSpot(TM) Server VM
Dataset consistency test: No problems found

Plugins:
- ImportImagePlugin (30416)
- OpeningHoursEditor (30609)
- PicLayer (30436)
- buildings_tools (30485)
- geotools (30569)
- jts (30416)
- log4j (30416)
- measurement (30641)
- notes (v0.9.4)
- turnrestrictions (30651)