2.0.0-rc.2 might break the build (ajv)

[johakr]

Listing ajv in devDependencies and not explicitly in dependencies might break the build of packages relying on extract-text-webpack-plugin. ajv might not be installed at all or might be resolved to a wrong version.

In our specific project, we have [email protected] as dependency in our main package.json, leading to the following error, since extract-text-webpack-plugin expects ajv to be version 4 but finds version 5:

Error: no schema with key or ref "http://json-schema.org/draft-04/schema#"

[michael-ciniawsky]

@amazingcode-de Yep that should be fixed, good catch.
Do you want to send a PR for it?
Otherwise I will do it when I have a few minutes :)

[bebraw]

Merged.