Fixed current problems with having changed the column named "type" to
"exercise".

 On branch master
 Your branch is up-to-date with 'origin/master'.

 Changes to be committed:
	modified:   app/controllers/exzweights_controller.rb
	modified:   app/views/exzweights/_form.html.erb
	modified:   app/views/exzweights/show.html.erb