existing promotions show up when admin enters product edit page, promotional price shown and updated as admin moves slide bar.  fixed promo-price method in product model so it no longer sets the product's price
added spec for live update of promo price in product edit form...left as pending since capybara cant seem to recognize jquery stuff
small formatting on promo price in product edit form, working on getting % next to promo value, currently resides above it
fixed formatting on promotion field in products edit form...field now called 'amount'-needed to change in admin-creates-promo features spec
promo price updates with changes to price field in product edit page
merge