Rename 'repackaged_products' -> 'repackagedProducts'

Make jshint happy by avoiding:

  $ grunt
  ...
  Running "jshint:all" (jshint) task

  app/scripts/controllers.js
    line 98   col 0  Identifier 'repackaged_products' is not in camel case.
    line 102  col 0  Identifier 'repackaged_products' is not in camel case.
    line 104  col 0  Identifier 'repackaged_products' is not in camel case.

  ✖ 3 problems

  Warning: Task "jshint:all" failed. Used --force, continuing.
  ...