0.8.1+1

• Updated installation instructions in README.

0.8.1

• Return a non-null value from getSavePath for consistency with API expectations that null indicates canceling.

0.8.0

• Migrated to null-safety

0.7.0+1

• Add dummy ios dir, so flutter sdk can be lower than 1.20

0.7.0

• Initial open-source release.