Tag the v0.1.0 release
Fix coverage report

Enable workaround for https://github.com/gotwarlost/istanbul/issues/55.

Ref. #2.
Increase code coverage
Speed up `fromCodePointRange`

Auto-generated ranges don’t need to be sorted or type-checked.
Enable continuous integration via Travis CI
README: Add build status badge
Add `fromSymbols`
Add `fromSymbolRange`
README: Add usage examples
Tag the v0.2.0 release
README: Add another usage example
Don’t move unmatched high surrogates to the end of the regex if it’s not needed (i.e. if no astral symbols are involved)

Closes #3.
README: Add more usage examples
Add `fromCodePointRanges`

Closes #4.
README: Add “API” section
Add `fromSymbolRanges`
README: Add `fromSymbolRanges` example
Tag the v0.3.0 release
Add .npmignore
Minor tweaks