Moved tags under package name on view package page

Currently, if the package name is a bit lengthy, the tags are cut off:

![cutoff](https://cloud.githubusercontent.com/assets/15487/3173935/a2f89af2-ebec-11e3-9122-56322cff1948.png)

I've attached CSS changes that attempt to fix this by shifting tags onto the next line:

![visible](https://cloud.githubusercontent.com/assets/15487/3173941/b2ea0ed2-ebec-11e3-853f-91eff618f179.png)