Bump version to 0.1.3

 - thanks for the pull request #11

Merge pull request #7 from alanzchen/recursive-protection

Recursive protection

Update README.md & make import statement explicit

 - should fix #5
 - updates README.md
 - bumps version to v1.1.1.1

Update README.md and typos

Merge remote-tracking branch 'origin/master'

# Conflicts:
#	README.md