Release v1.1.0

[carlosmonteagudoinbibo]

• Updated Release Notes for v1.1.0: added Core, Maya, Bug Fixes and Known Limitations sections
• Added all content in all pages related to:
  • attach to tranform
  • attach to geo
  • slide on geo
  • shape preservation
  • mass control
• Added a page for Skin Merge
• Fixed index to add Skin Merge and to match the order that the deformers are presented in A Simple Setup
• Updated screenshots as the shelf and menu have changed