Change repository name and references to "wordwrap2"
Add tests to verify that we produce the same result as wordwrap
Minor performance improvement
Fix several bugs listed in Issue #3
Merge branch 'bugfix1'

Conflicts:
	index.js
Disable compatibility tests with wordwrap

We may re-enable them when our pull request is accepted.
Fix mixed tabs and spaces
Support 4 different whitespace options
Add tabWidth option
Add support for skip sequences
Add wordwrap.wrap() to simplify one-time calls
Rewrite wordwrap.hard() to support other params
Change project name from wordwrap2 to linewrap

We make this change because the old name:
1. may make people think that this project is done by the author
   of wordwrap.
2. may make people think that this project is backwards-compatible
   with wordwrap, which was our goal at the beginning, but is no
   longer the case.
Add a benchmark script to gauge performance
Optimize to improve performance
Add support for custom linebreak strings
Escape user-supplied strings before creating RegExps out of them