Add Makefile and install.sh

Update to parse@v2.4.2

Upgrade tdewolff/parse from 2.3.13 to 2.3.14

Update to parse@v2.3.13; minify entities in HTML, XML and SVG; optimi…

…zations to improve ReplaceMultipleWhitespace by 20%--25%

Upgrade github.com/tdewolff/test to v1.0.4

Merge branch 'master' of github.com:tdewolff/minify

Update tdewolff/parse to v2.3.7

Update version of tdewolff/parse to v2.3.6

Reflect use for Go modules

Add GO111MODULE=on