Merge pull request #2 from szymonkaliski/master

temporary fix for installing pex-color with npm using github repo
Added lerp function
Added setRGB as alias to create
Added semicolon
Added system files to gitignore
Removed examples
Unified null alpha param checks
Merge branch 'master' of github.com:vorg/pex-color
Removed dependency on pex-sys
v0.0.5
Added fromArray factory method
v0.1.0
upstream merge