first attempt at View#columns=
write tests for #add_all_condition and #add_any_condition
write tests for #all_conditions= and #any_conditions=
write a test for #add_column
update .gitignore
make unit tests instead of live tests
Extract condition helper methods to Conditions module
Create Actions module and test all rules' hepler methods
Move unit tests to live tests
move test files to spec/core/resources/
Merge pull request #202 from zendesk/ytang/rule-helper-methods

Add helper methods for configuring Views