chore(package): update istanbul to version 0.4.5 (#569)
chore(package): update istanbul to version 0.4.5 (#569)

https://greenkeeper.io/
apollostack/apollo-client,cesarsolorzano/apollo-client,stevewillard/apollo-client,stevewillard/apollo-client,cesarsolorzano/apollo-client,calebmer/apollo-client,cesarsolorzano/apollo-client,apollographql/apollo-client,apollostack/apollo-client,calebmer/apollo-client,calebmer/apollo-client,stevewillard/apollo-client,apollostack/apollo-client,apollographql/apollo-client