remove jscs
add new methods

  - expose invert
  - add contains
  - add has
remove console
remove console
add chaining support
Update README.md
Release 0.5.0
so long wicked
update docs
update docs
update for .5
small updates
equal should be false for 0 === '0'
Merge branch 'master' of https://github.com/dalssoft/is