Version 2.1.1

• Add comp_numeric_transition: this allows transitioning an entity option gradually from one value to another over time.
• Add comp_scriptvar_setter: a tool for copying positions or similar configuration to a VScript instance.
• For Portal 2, add a vactube animation system for building decorative tube networks.
• Fix a few icons being missing.

v2.1.1: Upload the correct compiler version.