meng
rename create_node() to create_course_node() in course.rb
add several course unit tests
course unit tests done
course_node changes
add course_node_test.rb
fix an error
fixture added in user_test.rb
add course_node_test.rb and course_node.rb
course_team chaged refactored import
Merge branch 'hao' of https://github.com/mengcao/E608
add course_node_test.rb and course_node.rb
add course_node_test.rb with renamed methods
unit tests for CourseParticipant done
merge kenny
untrack Gemfile.lock
hao_mar_13
hao_mar_13
hao_mar_13
hao_mar_13