popularity() v0.001
popularity_list() v0.001
Modify the User class
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Change reviews from Array to Hash to record movie_id => review
Modify load_data() to support change in data_holders
v0.002
extract load_file() to a separate module
Change the type of rating from String to Integer
similarity v0.001
most_similar v0.001
add default parameter to popularity_list
add comment header
basic tests
first commit
change name and format the greetings
extract command handlers to module command_handler.rb
loaddata, popularity, popularitylist and default
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In progress: movie, user, similarity, mostsimilar