Fix/pubkey (#11)

* fix(pubkey, id): fix generate pubkey and extension id, #5

* chore(commands): some improvements

fix (#10)

feat: add release task

chore: update README.md

increased version to go1.15

Merge remote-tracking branch 'origin/master'

# Conflicts:
#	README.md

Merge remote-tracking branch 'origin/master'

# Conflicts:
#	README.md

added tests, some refactor, new api

some update