Keep Right/390 missing tracktype

Message: This track doesn't have a tracktype

Ways tagged with highway=track but missing tag tracktype=<grade1-5>. This tag is quite important for routing programs.

Continent	World	Africa	America-Canada	America-Central	America-South	America-US	Asia	Australia-Oceania	Europe
20150907	6,279,640	391,357	141,550	77,879	155,342	670,458	694,347	97,413	4,051,294
20141230	5,385,796	280,048	131,837	69,116	137,636	578,220	549,204	82,403	3,557,332
20140423	4,436,855	170,691	106,044	65,839	109,928	513,157	426,291	73,084	2,971,821
20131003	3,755,764	134,029	60,013	62,605	94,130	467,853	338,435	60,854	2,537,845
20130710	3,505,469	115,944	55,207	58,493	87,254	466,882	307,905	52,219	2,361,565
20130116	2,980,679	81,524	48,489	55,371	77,337	452,083	246,339	40,993	1,978,543
20121112	2,762,772	64,864	43,266	52,336	74,215	438,795	220,273	37,565	1,831,458
20121015	2,653,973	60,113	38,867	51,653	72,882	434,710	212,379	35,768	1,747,601
20120926	2,582,658	57,734	38,134	50,804	71,306	430,739	200,853	34,248	1,698,840
20120917	2,550,653	60,756	37,877	51,842	71,150	431,896	190,004	41,588	1,665,532
20120913	2,541,188	60,097	37,864	51,798	70,876	431,522	190,323	41,388	1,657,312