pkgsrc change: add pkg_alternatives support.
v3.0.3
Improvements
* #330 - fixed warnings on JRuby
v3.0.2
Bugfixes
* fix#328 - add missing require which crashed Listen on OSX (thanks to @noahsw for reporting)
v3.0.1
Bugfixes
* #325, #327 - fix regressions (allow Listen to run correctly without other
deps + properly handle pause())
v3.0.0
KNOWN ISSUES
* #319, #258 - TCP is no longer part of Listen, and there's currently no
alternative except downgrading to Listen 2.x
API CHANGES
* TCP functionality removed (Listen.on, Adapter::TCP,
Adapter::TCP::Broadcaster, etc.)
* Listener#start should be used instead of Listener#unpause
* Listener#directories is no longer available
* Listener#options is no longer available as public API
IMPROVEMENTS
* Major performance improvements (CPU), especially for Polling
* Celluloid is no longer required by Listen (which means: better performance,
less dependencies, less threads used, less version conflicts, easier
debugging, less potential issues/bugs)
* TCP is no longer part of Listen (which means: more maintainable codebase and
possibility to create much better TCP implementation without the tradeoffs)
Development
* major codebase rewrite
* better logging by default
