Discount Fix & Price updates

Fixes:

• Bulk discounts will now apply properly in cart (click “update cart” after changing quantities) and in checkout.
• Discount amounts now easier to see for smaller screens.
• Prices corrected or standardised for a number of products.

Updates:

• Stripe now default payment option.
• Re-applied Caching tool to speed up site interaction.
• Bulk quantity discount levels have been updated on most products.

Known Issue:

• Paypal Express appears to lock users in to paying via Paypal if user has logged in to Paypal as part of a checkout process on the site.
  Workaround: Using Private browsing function ignores the offending cookie and allows you to place orders and paying using one of the other payment options.