Software Update - 5.1.7

New Features:
- We added a new option for manufacturers to permanently delete (not just hide) unused materials/edges/hardware/doors

- Add reCAPTCHA to signup forms to prevent spam signups

New Improvements:
- Updated the library of benchtop edge profile symbols to use a finer weighting of the lines

- Customer favourites now checks product library again upon loading to ensure no hidden products are shown

New Fixes:
- Resolved a display issue where custom colour fields listed an extra label, and displayed partially off-screen when using the "advanced" material selector