simplify prev_menu operation
Merge pull request #7 from yous/patch-develop

Progress
Merge pull request #8 from synthdnb/develop

simplify prev_menu operation
now user can actually "select" board!
remove unneccessary require
add skeleton for terminal header and footer
print current_board in header
add FIXMEs to not implemented feature
implements (B)oard in main menu
add Post model
Add SOURCE_ANNOTATION_DIRECTORIES environment variable for `rake notes`

http://guides.rubyonrails.org/command_line.html#notes

Close #10
fix rubocop errors
Merge pull request #11 from yous/patch-notes

Add SOURCE_ANNOTATION_DIRECTORIES environment variable for `rake notes`
add has_many :post to Board
add bcrypt gem for ActiveModel::SecurePassword
rename password columns
remove critical bug
introduce sample data
fix README.md
Simplify size_for_print