think of lernajs integration

[sobolevn]

I guess vue-material-* is a perfect usecase for lerna. All components are isolated and it won't change. But having all of the components in a single repo might have a lot of benefits.

Pros are:

1. I really like that we will have meta repository for all the components, providing docs and examples here seems natural
2. It would be much easier to fix issues with readmes, versions, and other meta-information (now, I have to create 4 separate issues for each component sharing the same bug)

Cons are:

1. Issues will be harder to addressed
2. It is an unusual way for some people
3. I will have to abandon the current repos
4. ... to be found ...