Revert "loop ratings an option"

This reverts commit a23fde9491b6f6b85a09deded960cb0c46a1b6cf.
rating removal snippet in readme
Added Zend Studio to .gitignore
belau
star ratings without images.
Merge pull request #2222 from Ramoonus/patch-1

Added Zend Studio to .gitignore
ui datepicker. Closes #2223.
Stripped comments from gitignore, no need for that
star rating tweaks
Fix category order + nesting Closes #2226.
Fix pay form Closes #2225
Fix reports Closes #2211.
Check we're viewing a product Closes #2227
stars
fix session expirey and clear old expired sessions
removed easter egg
Fix ordering. Closes #2229.
Revised session handler based with some code from Eric Manns wp_session class idea.

The (long term) plan will be to use that when stable and in WP core.
Until then, our wc_session_ implementation will work.

This is similar to what we had, with the exeption of not using
transients to ensure the data persists.

@coenjacobs please view this.
Session cleanup should be part of implementation
Hooks for individual use overriding on the frontend