Upgrade dependencies (#2140)
Upgrade dependencies (#2140)

Among other things, this upgrades fsevents from 1.1.1 to 1.1.2, which
eliminates a `yarn` warning on OSX machines running Node.js 8. See here
for details: https://github.com/strongloop/fsevents/issues/170
azz/prettier,existentialism/prettier,existentialism/prettier,lydell/prettier,arijs/prettier-miscellaneous,lydell/prettier,arijs/prettier-miscellaneous,prettier/prettier,rattrayalex/prettier,prettier/prettier,Skywalker13/prettier-space-parenthesis,rattrayalex/prettier,prettier/prettier,azz/prettier,prettier/prettier,azz/prettier,rattrayalex/prettier,arijs/prettier-with-tabs,lydell/prettier,Skywalker13/prettier-space-parenthesis,arijs/prettier-miscellaneous,Skywalker13/prettier-space-parenthesis,Skywalker13/prettier-space-parenthesis,jlongster/prettier,existentialism/prettier,existentialism/prettier,arijs/prettier-with-tabs,lydell/prettier,arijs/prettier-miscellaneous,azz/prettier