Add go_import_path to travis so it works on a fork. (#1995)
Add go_import_path to travis so it works on a fork. (#1995)



brancz/prometheus,Stackdriver/stackdriver-prometheus,Conorbro/prometheus,adamron1/prometheus,alileza/prometheus,PrFalken/prometheus,dsymonds/prometheus,amorken/prometheus,AlekSi/prometheus,brancz/prometheus,ton31337/prometheus,keegancsmith/prometheus,prometheus/prometheus,Conorbro/prometheus,brancz/prometheus,keegancsmith/prometheus,datajet-io/prometheus,amorken/prometheus,gottwald/prometheus,agaoglu/prometheus,slok/prometheus,Gouthamve/prometheus,JavierZunzunegui/prometheus,datajet-io/prometheus,tomwilkie/prometheus,kangwoo/prometheus,amorken/prometheus,datajet-io/prometheus,PrFalken/prometheus,JavierZunzunegui/prometheus,yanghongkjxy/prometheus,ton31337/prometheus,datajet-io/prometheus,tomwilkie/prometheus,gottwald/prometheus,tattsun/prometheus,SaltedMan/prometheus-annotated,JavierZunzunegui/prometheus,keegancsmith/prometheus,agaoglu/prometheus,Conorbro/prometheus,amorken/prometheus,Gouthamve/prometheus,agaoglu/prometheus,slok/prometheus,ton31337/prometheus,Colstuwjx/prometheus,Colstuwjx/prometheus,tattsun/prometheus,dsymonds/prometheus,Gouthamve/prometheus,AlekSi/prometheus,dsymonds/prometheus,adamron1/prometheus,GoogleCloudPlatform/prometheus,dsymonds/prometheus,kangwoo/prometheus,GoogleCloudPlatform/prometheus,PrFalken/prometheus,agaoglu/prometheus,prometheus/prometheus,adamron1/prometheus,slok/prometheus,alileza/prometheus,gottwald/prometheus,PrFalken/prometheus,alileza/prometheus,tomwilkie/prometheus,Stackdriver/stackdriver-prometheus,slok/prometheus,SaltedMan/prometheus-annotated,SaltedMan/prometheus-annotated,kzittritsch/prometheus,prometheus/prometheus,tattsun/prometheus,kzittritsch/prometheus,Colstuwjx/prometheus,kangwoo/prometheus,SaltedMan/prometheus-annotated,AlekSi/prometheus,prometheus/prometheus,Stackdriver/stackdriver-prometheus,alileza/prometheus,GoogleCloudPlatform/prometheus,yanghongkjxy/prometheus,Conorbro/prometheus,tattsun/prometheus,GoogleCloudPlatform/prometheus,keegancsmith/prometheus,Gouthamve/prometheus,yanghongkjxy/prometheus,kzittritsch/prometheus,keegancsmith/prometheus,kangwoo/prometheus,adamron1/prometheus,yanghongkjxy/prometheus,Stackdriver/stackdriver-prometheus,prometheus/prometheus,JavierZunzunegui/prometheus,kzittritsch/prometheus,tomwilkie/prometheus,GoogleCloudPlatform/prometheus,brancz/prometheus,Colstuwjx/prometheus,AlekSi/prometheus,gottwald/prometheus,alileza/prometheus,ton31337/prometheus