allow to pass a Proc to the exclusion_of validator
rely on a stable version of rspec
Add with_polymorphism and with_cascading_callbacks association matcher

Includes tests

Also update RSpec to >= 2.14 since it's been released now
Add more environments to Travis; add "allow_failures" on unstable environments
Add Association.cyclic and .stored_as matchers. (stored_as is a valid attribute on embedded relations, it is not deprecated.)
Merge pull request #110 from johnnyshields/master

Improved assocition matcher: with_polymorphism, with_cascading_callbacks, stored_as, cyclic
Merge branch 'master' of https://github.com/did/mongoid-rspec

Conflicts:
	mongoid-rspec.gemspec
Bump version 1.9.0.
Remove commented code and fix indentation.
adding parentheses.
Update README

Restrict the usage of Mongoid::Matchers on rspec configuration to avoid
this issue https://github.com/jnicklas/capybara/issues/506 when using
capybara
Merge pull request #114 from carloslopes/improve-installation-instructions

Update README