Clean up JLine threads when no longer needed
Documentation improvements

* Documented using running pid with /var/run
* Cleaned up production documentation to be nicely linked
* Added external link validator
* Added relative link validator
* Fixed broken external links
* Fixed problematic relative links
Upgrade to newest version of sb-tnative-packager to fix several bugs
Add more working tests and examples to ScalaWS
Fix some typos and broken links, make iteratee section clearer
Fix unfinished sentences
Merge pull request #1588 from jroper/more-docs-improvements

Documentation improvements
Merge pull request #1590 from benmccann/packager

Upgrade to newest version of sb-tnative-packager to fix several bugs
Merge pull request #1591 from wsargent/scalaws-examples

[doc] Add more working tests and examples to ScalaWS
Merge pull request #1592 from richdougherty/jline-thread-leak

Clean up JLine threads when no longer needed
Merge remote-tracking branch: upstream/master