New features and bug fixes

• Visualization of Related Product groups
• Clean up in color list
• Better Garbage collection after deleting catalog
• Preview mode
• New template using markup language
• Impressum is taken from legal collection on server
• CRM History and Documents
• Possibility to display pdf, xlsx, docx, pptx, txt and handover to other programs
• KLAFS font only for Klafs tenant
• canceled support for iOS 8 and 9