Adds tinycolor.mix()
Mix amount default noted in README.md
Consisten amount handling, readable weight calc
Merge branch 'feature/mix' of github.com:levithomason/TinyColor into feature/mix
Spelling fix

Courtesy of a room full of students who like your library. And spelling.
Merge branch 'feature/mix' of https://github.com/levithomason/TinyColor
whitespace
update component.json based on https://github.com/component/spec/blob/master/component.json/specifications.md
prep for 0.11.0
delete unused test files for smaller package manager downloads
prep for 0.11.1