created books_groups join table
fixed tabs oops
fixed groups_books table migration to use newer ruby syntax
renamed groups_books table to books_groups
created books_groups join table
fixed tabs oops
fixed groups_books table migration to use newer ruby syntax
renamed groups_books table to books_groups
Merge branch 'will/schema' of github.com:calblueprint/worldreader into will/schema
Merge pull request #25 from calblueprint/will/schema

created books_groups join table closes #2