Code review comment for lp://staging/~gary/juju-gui/styling-environment-menu

*** Submitted:

Update service menus and enable for inspector

One of the last big issues remaining in the UX design to make the
inspector usable was to make a disoverable way of creating relations.
Luca and Ant worked together to revamp the existing popup menu for the
purpose. This branch takes their design work and makes it work for both
inspector and non-inspector uses. In order to have it work well, I had
to update some of the calculations that determined where the menu was
drawn.

R=benji, bac
CC=
https://codereview.appspot.com/11620043

https://codereview.appspot.com/11620043/