Hotfix of v0.5.2

This version is hotfix of v0.5.2.

Changes:

• [improved] Remove coverage/ from final npm package
• [fixed] #11 Cannot install from npmjs.org due to checksum error (thanks @agsmorodin)

Bump deps

Changes:

• Replace cson-safe with cson-parser
• Bump deps

Release 0.5.1

• Update cson-safe to 1.0.0