#163. Added pricing into the appearance tab and backend controller.
#163. Backmerge with master.
#163. Fixed minor issues in admin area.
#163. Backmerge with master.
#163. Backmerge with master.
#163. Backmerge with master.
#163. Changed js and view according to the last naming changes.
#163. Added front functional, forms and hooks.
#147. Variables in controllers assigned as 'laterpay' array.
#147. Fixed errors in statictic view, pointers view, removed laterpay prefix form post laterpay array elements.
Merge pull request #458 from laterpay/feature/147_assign_variables_to_views_as_array

#147. Variables in controllers assigned as 'laterpay' array.
Closes #147
#163. Fixed js issues with double save and form, some changes in views.
#163. Backmerge with master.
#163 A few formal adjustments
#163. Minor changes in comments and class names.
#163 Added missing newlines and such
#163. Merge with last changes.
#163. Removed unmerged lines.
#163 Minor styling fixes
Merge branch 'feature/163_rating_for_purchased_items' of github.com:laterpay/laterpay-wordpress-plugin into feature/163_rating_for_purchased_items