v0.10

Changes:

• Issue #12: remove unnecessary warning
• Update README
• GUI updates: show version, fix window close
• Added small util for 'translating' g-code coordinates
• Tune filament switch g-code
• Issue #11: z-position fix part 2
• Issue #11: z-position fixes
• Multi-tower: print towers in ordered fashion, z-hop fix
• First working version of multi-tower functionality
• GUI: add tabs. Configurable purge lines
• Logger: add error and warning descriptions
• Fix two bugs
• Remove x-bit from filaswitch.bat
• Update filaswitch.bat: proper path to filaswitch.py, args
• Issue #7: bed size detection
• Disable error popup
• CLI: add position default AUTO