Initial checkin, some features implemented
removed files from repository which should not be tracked
correct model attribute "nickname"
temporarily removed human-friendly nicknames because it was interfering with session/create
added document source import files and reviewer inviting
added dashboard; not included in main layout, for now
correct selection of projects' document sources
added default title to new projects
corrected setting initial sequence number for review stages
importing document sources in two steps: upload file, then import file to database
use the current user as the active user at the welcome page
change session controller to use flash consistently
corrected logic of following_ and preceding_siblings of document reviews
updated new document sources page
show 5 most favorite projects instead of just 2
correct error in calculating percentage of proect description words
update calculation of completeness of assigning reviews
improved display of document sources on project page
added note for zero stages
updated display of review stages index