added resource_link_id param to student locations urls, fixed good map ulr issue, moved css to external file, updated application logging
added resource_link_id param to lecture video urls
added resource_link_id to error.html
minor updates
added resource_link_id reserves reading list
updated context error messages for lit tools
clean up some logging statements and did some refactoring
moved resource_link_id to be the first argument in the url
Merge pull request #126 from Harvard-University-iCommons/feature/apply_session_url_param

Feature/apply session url param