[WIP] home page update

This is WIP ...

@tardyp This one is mostly for you.

Lots of question remaining:
- How do we get that page automatically update itself ?
- Can we get the slave status ?
- About the build info, do I need to perform a request for each filed I need ? (builder name, slave name)

Do we want a list of recently finished builds, or is currently running enough ?
I think we should reuse directive for these dashboards.
We already have a buildsummary directive, that can fetch a lot of data derived from a build (steps, slave, etc)

Maybe we would can adapt it to lazy load the additional information only when needed.
I like a lot JIRA's agile dashboards, with fixed boxes to represent issues. This layout could very well adapt to current builds I think:

![](http://snag.gy/2Yy27.jpg)