Add the title and version at the generated API doc

[The actual generated API doc](http://slick.typesafe.com/doc/1.0.0/api/) does not show a good HTML title.

By updating the `scalacOptions` not only for the `doc` scope but also for the `Compile` scope solved this issue (at least with my setup which uses sbt 0.12.2). 

With this patch, by using `doc` in the sbt console, the HTML title is correct.

I would really know if anyone has any explanation for this. The only reference I found for this issue is https://groups.google.com/d/msg/simple-build-tool/7jrnGu-zAKo/DutBSGnRY1wJ (but I don't really understand the explanation...)