Makes construction=minor ways routable again, see #4258

Author: daniel-j-h

features/car/construction.feature

@@ -14,3 +14,4 @@ Feature: Car - all construction tags the OpenStreetMap community could think of
             | primary      |              |     yes  |       |
             | primary      |           no |          | x     |
             | primary      |     widening |          | x     |
+            | primary      |        minor |          | x     |

profiles/lib/handlers.lua

@@ -520,7 +520,7 @@ function Handlers.handle_blocked_ways(way,result,data,profile)
     local construction = way:get_value_by_key('construction')
 
     -- Of course there are negative tags to handle, too
-    if construction and construction ~= 'no' and construction ~= 'widening' then
+    if construction and construction ~= 'no' and construction ~= 'widening' and construction ~= 'minor' then
       return false
     end
   end