Update dependencies and fix new flow error in triangle.test.js

Fully deprecate returnUnit functionality and refactor return.

Make strict mode default when passing custom colors.

Enable bugfix:true in build and target explicit browser list

Default is now to look for a local font of the same family-name before downloading. Can be turned
off by passing null to localFonts.

BREAKING CHANGE: localFont will now be populated by default and may have unexpected behavior.

important helper for targeting specific rules in module returns for adding `!important`-level
specificity.

triangle now returns properties in a way that allows inherit to work by declaring an individual side
for the triangle color.

Allow the user to pass a default value to cssVar for when a variable is not found.

…max (#511)

* chore(library): update dependencies

Update dependencies and fix new flow error in triangle.test.js

* refactor(stripunit): fully deprecate returnUnit

Fully deprecate returnUnit functionality and refactor return.

* refactor(readablecolor): make strict mode default

Make strict mode default when passing custom colors.

* build(babel): enable bugfix: true

Enable bugfix:true in build and target explicit browser list

* build(lint-staged): remove superfulous git add

* build(lerna): lerna init

* feat(normalize): upgrade to normalize 8.0.1

* build(docs): removed documentation.js auto generation

* feat(fontface): now defaults to looking for local font first

Default is now to look for a local font of the same family-name before downloading. Can be turned
off by passing null to localFonts.

BREAKING CHANGE: localFont will now be populated by default and may have unexpected behavior.

* feat(important): important helper for module rule specificity

important helper for targeting specific rules in module returns for adding `!important`-level
specificity.

* chore(important): update to not mutate original parameter

* chore(important): add to index.js

* fix(triangle): triangle now properly supports inherit

triangle now returns properties in a way that allows inherit to work by declaring an individual side
for the triangle color.

* feat(cssvar): allow a default value for cssVar

Allow the user to pass a default value to cssVar for when a variable is not found.

* fix(between): added error case when to/from unit is different than min/max

Added an error case when the unit for to/fromSize is different than min/maxScreen. This was causing
bad calculations based on the differing scales.

BREAKING CHANGE: If you were using a mix of unit and unitless measure or working with different
units with similar scales (em/rem) you will now get an error where you may have been getting a
seemingly valid calculation.

fix #445

#513)

re #402

…use latest versions