Fix copy-paste errors in documentation
Fix #94; allow Time instances when Time.zone is set
Clean up code by removing value_class method

"klass" returns the class that can be used to create valid objects.
"klasses" returns a list of classes that can be considered valid
objects.
Extract class from filter name
Update the changelog
Version bump to 0.10.2
fix #95 by making guard call rspec with bundle exec
run rubocop in guard
Random code cleanup
Update to Ruby 2.1.0p0
Run specs before cops
Ignore make files
Remove redundant dependency
Remove unnecessary dependency
Extract class from filter name (see 865016e)
Extract common abstract filter functionality
Revert to default max method length
Refactor AbstractDateTimeFilter#cast
Refactor AbstractNumericFilter#cast
Refactor ArrayFilter#method_missing