Add history as top-level dependency
Add history as top-level dependency

was causing the webpack build to fail (cf similar problem fixed in gatsbyjs/gatsby#174)
karolklp/slonecznikowe2,futuregerald/NetlifyApp,InnoD-WebTier/irc,byronnewmedia/deanpower,jmcorona/jmcorona-netlify,TasGuerciMaia/tasguercimaia.github.io,ni-tta/irc,ni-tta/irc,kepatopoc/gatsby-starter-clean,futuregerald/NetlifyApp,benruehl/gatsby-kruemelkiste,roslaneshellanoo/gatsby-starter-clean,karolklp/slonecznikowe2,ivygong/irc,immato/website,peterqiu1997/irc,jmcorona/jmcorona-netlify,MeganKeesee/personal-site,InnoD-WebTier/irc,sarahxy/irc,dearwish/gatsby-starter-clean,sarahxy/irc,ivygong/irc,peterqiu1997/irc,MeganKeesee/personal-site