Second commit updating all the possible dependencies without breaking the build. The only dependency that wasn't updated was rollup-plugin-vue that stayed at 4.6.1 because 4.6.2 onward with the latest being 5.1.4 breaks the build.

If you don't want to merge this one, at least merge the first one that was just a small change.

I've updated eslint and introduced vue-cli-service. As a suggestion you could try and convert the entire project to vue-cli-service and use it instead of rollup for a version 0.3.

Please check the commits (and don't mind the broken .eslintrc.js on the 3rd commit, I fixed it on the 4th) and see if it's something useful for the project and merge it.

With this I'll close #181 now.

Edit: You should really update your tests add more. The code is barely tested. Especially the asynchronous behaviour and the RequestFrameAnimation part.

Just saw PR #183 that was a lot more elegant fix than my way to get rid of the errors I mention in the 3rd commit.

@amsik could you review the pull requests?

@amsik done.