removed paper_trail from all the things
removed some leftover log JS
removed old CSS import
removed log routes
removed link to log in layout
Merge branch 'master' into 1033_remove_paper_trail

Conflicts:
	Gemfile
	Gemfile.lock
	app/assets/javascripts/application.js
	spec/controllers/log_controller_spec.rb
	spec/spec_helper.rb
Merge pull request #1044 from YaleSTC/1033_remove_paper_trail

resolves #1033