reenable test of input plugin directory checking after https://github.com/mapnik/mapnik/commit/4057c2c822e6076dc0c33de2556f26fd0e772b57
reenable test of input plugin directory checking after https://github.com/mapnik/mapnik/commit/4057c2c822e6076dc0c33de2556f26fd0e772b57

mojodna/node-mapnik,gravitystorm/node-mapnik,mapnik/node-mapnik,mojodna/node-mapnik,tomhughes/node-mapnik,Uli1/node-mapnik,mojodna/node-mapnik,gravitystorm/node-mapnik,mapnik/node-mapnik,tomhughes/node-mapnik,MaxSem/node-mapnik,gravitystorm/node-mapnik,stefanklug/node-mapnik,langateam/node-mapnik,mapnik/node-mapnik,CartoDB/node-mapnik,gravitystorm/node-mapnik,tomhughes/node-mapnik,MaxSem/node-mapnik,tomhughes/node-mapnik,Uli1/node-mapnik,langateam/node-mapnik,stefanklug/node-mapnik,tomhughes/node-mapnik,stefanklug/node-mapnik,Uli1/node-mapnik,langateam/node-mapnik,Uli1/node-mapnik,mojodna/node-mapnik,mapnik/node-mapnik,stefanklug/node-mapnik,CartoDB/node-mapnik,mapnik/node-mapnik,CartoDB/node-mapnik,MaxSem/node-mapnik,CartoDB/node-mapnik,langateam/node-mapnik,langateam/node-mapnik,CartoDB/node-mapnik,MaxSem/node-mapnik