v0.6.0

New features

• Readables: Added .read_by as the inverse of unread_by(#53, thanks to @mikeki)
• Readers: Added .have_read and .have_not_read (#55, thanks to @mikeki)

Changes

• acts_as_reader: For setting scope (previously undocumented feature), the option now takes a lambda instead of an array of symbols (0b91458)
• Used quoting for column/table names in SQL statements

Bugfixes

• Added compatibility for protected_attributes gem
• Fixed memoization issue on resetting read_marks
• Fixed eager loading by with_read_marks_for (#56, thanks to @mikeki)
• Fixed nested transactions (#26)
• Fixed a time fraction bug in unread_by scope (#51,#52, thanks to @huiping)