In projects with ActiveSupport the invalid dates are not handled correctly.
Merge pull request #29 from eliank/date_filter_fix

In projects with ActiveSupport the invalid dates are not handled correctly
Reconstantize
Update readme
Cherry-picked feature/dynamic_data_types
Model is now a special data-type, like it was before. It has a different constructor.
Name to sym
Making it 1.8.7. Compatible
Merge pull request #32 from bluetools/pull-request/dynamic_data_types

Adding additional filters
Bump version
discard_invalid option for filters
don't need this array default now
Merge pull request #36 from wlrs/discard_invalid

Add a discard_invalid option for filters
Additional filter names are now underscored instead of downcased.
Fix typo in command.rb:115

The Hash key `cut_errors` should be `cur_errors`
Added a spec to validate that Command#add_error properly creates nested Hashes
Merge pull request #39 from rks/master

Fix typo in command.rb:115
Added tests for StringFilter :strict option.
Merge pull request #41 from ehalferty/master

Added tests for StringFilter :strict option.
Removing unneeded requirement for the active_support module.