add pdf file reader and form fields for uploads
add helper for processing pdf and text uploads
add warden and attempt integration tests
add features tests for uploading and logging in
Merge branch 'file_upload' of github.com:purple-martins-2013/storyward into file_upload

Conflicts:
	.DS_Store
	Gemfile
	Gemfile.lock
	app/helpers/node_helper.rb
	app/views/stories/_form.html.erb
remove current tag scheme
add acts-as-taggable-on gem
add tagging ability
change tag list label
remove old tag model
redirect from welcome to profile when signed in
Merge pull request #50 from purple-martins-2013/taggin-attempt

Taggin attempt
Merge pull request #51 from purple-martins-2013/logged-in-redirect

redirect from welcome to profile when signed in
remove old tag specs
create children_node array at time of story creation
add tagging specs
add force lowercase tag
modify story creation helper to ensure user saved
shell script for running rake tasks
avoid error when user undefined