Convert access=hov to access=no + hov=yes

[mkoniecz]

access=hov appears 2 124 times, hov=* appears 11 293 times (​http://taginfo.openstreetmap.org/keys/access#values ​http://taginfo.openstreetmap.org/keys/hov).

According to access wiki page "Use the access=* key to describe a general access restriction that applies to all transport modes.". As result, it impossible to guess meaning of say access=hov + foot=yes.

Other access values that should be tagged as combination of access=no + something=yes: emergency (1 347 directly in access vs 33 070 as a proper separate key), psv (1 125 directly in access vs 61 375 as a proper separate key).

agricultural and forestry are far less likely to appear on roads with complex tagging, also special value in access seems here to be more popular than a separate key (100 881 vs 28 548, 24 831 vs 3 196) but I would suggest changing it also here.

Note that access=agricultural, access=forestry appear in JOSM presets. access=psv, emergency, hov does not appear.

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2014-05-11 01:36:45
Last Changed Author: bastiK
Revision: 7105
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2014-05-11 01:48:28 +0200 (Sun, 11 May 2014)
Last Changed Rev: 7105

Identification: JOSM/1.5 (7105 en) Windows 7 32-Bit
Memory Usage: 78 MB / 494 MB (20 MB allocated, but free)
Java version: 1.7.0_55, Oracle Corporation, Java HotSpot(TM) Client VM
VM arguments: [-Xmx512M]
Dataset consistency test: No problems found

Plugin: OpeningHoursEditor (30416)
Plugin: RoadSigns (30438)
Plugin: buildings_tools (30416)
Plugin: continuosDownload (28565)
Plugin: lakewalker (30416)
Plugin: measurement (30416)
Plugin: notes (v0.9.2)
Plugin: wikipedia (30416)