chore(package): update webpack to version 2.2.1
chore(package): update webpack to version 2.2.1

https://greenkeeper.io/

dockerin/mkdocs-material,supremainc/sfmdev,squidfunk/mkdocs-material,dockerin/mkdocs-material,mjames-upc/mkdocs-unidata,dockerin/mkdocs-material,DatanestIO/mkdocs-material,squidfunk/mkdocs-material,supremainc/sfmdev,squidfunk/mkdocs-material,dockerin/mkdocs-material,mjames-upc/mkdocs-unidata,mjames-upc/mkdocs-unidata,supremainc/sfmdev,supremainc/sfmdev,mjames-upc/mkdocs-unidata,DatanestIO/mkdocs-material,squidfunk/mkdocs-material,DatanestIO/mkdocs-material,DatanestIO/mkdocs-material