bower.json should have a main parameter pointing to the distribution

The main parameter:

https://github.com/bower/bower.json-spec#main
https://github.com/bower/bower/issues/393

Can be used by package managers or build tools to work with the jQuery project automatically.

For example, debowerify used with browserify will allow you to require "jquery" as a dependency in browserify. However this does not work currently without the main parameter above.