Add preBuild hook for addons (Resolves #2410)
Fix camelCasing in builder tests
remove dead code

The location property of the router already gets set in line 33 of
config/environment.js. Reopening the router and setting the property in
start-app.js does not have any effect.

It seems that this code should have been removed as part of commit 8158db
Merge pull request #2413 from pogopaule/master

remove dead code
Some minor improvements, mainly links.
Merge pull request #2416 from kgish/master

Some minor improvements, mainly links.
Merge pull request #2411 from brittanystoroz/feature/addon_prebuild_hook

Add preBuild hook for addons (Resolves #2410)