0.6.1

• Multi-Value-Property sketch has been added to Travis CI build
• arduino-cli is used for CI build instead of Arduino IDE CLI
• Travis build is executed with stronger compile time checks (arduino-cli compile --warnings all)
• Problems uncovered by stronger compile time checks have been fixed
• Dependencies for CI build are fetched directly from github instead of a download via library manager to reduce wait time when fixing issues in dependent libraries
• Reduction of the available signatures for update