Update locale/de.js

rephrased (the very uncommon) usage of "entmarkiert" to "ohne Attribute".
Update locale/de.js

more "Markierung" -> "Attribut"
(see usage in the OSM wiki: http://wiki.openstreetmap.org/wiki/DE:Tagging)
Update locale/de.js

updated geocoder localization
Update locale/de.js

Rephrased more unusual formulations.
Merge pull request #713 from tyrasd/patch-1

Update locale/de.js