JOSM/touchscreenhelper: Added T shortcut, hold T to activate temporarily

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@29259 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4
ImageryAdjust: Adjust while holding shortcut key

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@29261 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4
 'JOSM/FastDraw: add option (Q) to draw closed polygons'

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@29263 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4