Add calculate button
Add "includes dues" and additional benefits
Drop the .00
Reorder member/nonmember, make member green

Also italicize additional benefits and update last revised date
Error checking working but not anchored
Spacing and sizing tweaks - fixed errors detatched from fields
Add percent symbol after the field
Add link to pricing plan comparison tool on pricing page
Merge branch 'payment_calculator' into dryad-dev