Reverted mocha gem back to 0.12.1 to fix rake test
Wrapped highest level zable logic in its own class - Zable::View, which can now most importantly store its column data.
Fixed Zable::View#method_missing to handle blocks
Changed testing blocks from lambdas to procs to make zable tests pass. All but 2 tests in workflow_test green
All tests green. Fixed extra params in header links by getting params data from the view context instead of an instance variable on the columns
Moved knowledge of params/controller request to within Zable::View and out of all html helpers