Added text match assessment type.
Refactored some of the Match/Multi code to accommodate new puzzle type.

filter "onComplete" function from milestone POST requests
add configurable textarea placeholder text to text_match puzzle type
First set of playlab blocks with var inputs
fix comment in seed.rake
Update .gitignore
Iterate on variable input blocks
re-apply changes to data.en.yml
Update _text_match.html.haml

fix dom class name
Update data.en.yml
Delete test_open_response_assessment.ora.txt
updates for ar.code.org
Additional variable input blocks
Merge pull request #375 from code-dot-org/i18n

updates for ar.code.org
Updated styling of user dropdown menu so it will match cdo.
Merge pull request #376 from code-dot-org/studio_dropdown_button

Updated styling of user dropdown menu so it will match cdo.
Revert opt_* changes
Merge branch 'playlab-var-inputs' into staging

Conflicts:
	dashboard/app/models/studio.rb
Merge pull request #256 from code-dot-org/msm_assessments

(Msm assessments) Text Match puzzle type for mathematical expressions
Removed old hover behavior so that styling works better with a button.
Merge pull request #377 from code-dot-org/studio_hover_style

Removed old hover behavior so that styling works better with a button.