add vendor/bundle to travis cache
add vendor/bundle to travis cache

MakeYourLaws/MakeYourLaws,MakeYourLaws/MakeYourLaws,saizai/MakeYourLaws,MakeYourLaws/MakeYourLaws,saizai/MakeYourLaws,MakeYourLaws/MakeYourLaws,saizai/MakeYourLaws,saizai/MakeYourLaws