Merge pull request #228 from Skud/recommended-price

added optional recommended price to products
Merge pull request #229 from Skud/recommended-price

display recommended price on product admin pages
cache recent_posts and recent_plantings partials
added memcachier gem
turn caching off again in dev
Merge pull request #231 from Skud/cache-partials

Cache partials
Merge pull request #232 from Growstuff/dev

Caching for homepage