bump up version to 0.3.3

bump up version to 0.3.2

bump up version to 0.3.1

bump up version to 0.3.0

bump up version to 0.2.0

bump up version to 0.1.1

set skip_cleanup: true in .travis.yml

bump up version to v0.0.8

chmod 600 on the fillin history file

update some wording in README.md