remove unused uninstall file
only use attr_accessible if it's supported

Rails 4 doesn't define the ActiveModel::MassAssignmentSecurity constant,
but there is a gem that allows it to be used. The models will now only
try to use the functionality if the constant is defined
Use of these methods is preferred for Rails 4

The Relation#all method is deprecated as of Rails 4, we should use these
to acheive the desired behavior.

yep.
Merge remote-tracking branch 'origin/master'
Merge pull request #348 from cwoodcox/rails-4/deprecation

Use of these methods is preferred for Rails 4
Merge remote-tracking branch 'origin/master'
only bump patch version
Merge pull request #346 from cwoodcox/rails-4/attr_accessible

only use attr_accessible if it's supported
now compatible with Rails 4

<3 cwoodcox
Mention Rails 4 compatibility in the readme.
just follow ammeter releases
Merge remote-tracking branch 'origin/master'
add and configure appraisal
generate Rails 4 appraisal
Rails 4 support - tests are green
rails 4 now at master
dropping the rails directory

this was only needed for Rails 2, which we don't support any more.
Take ownersship into account when exclude: true

fixes #341
Rails 3 compatibility for price of lots of deprecation warnings in logs =\
Remove dead code

thank you @medihack
fixes #115