Merge pull request #1 from stockholmux/master

Merging.
When next expiration is larger than default interval, it shouldn't publish the large interval.
Only rotate listener list when there is one or more due events pruned.
Merge branch 'master' of github.com:enobufs/dtimer
bump patch version
Bump patch version
Added more tests. Now code coverage is 100%. Fixed a couple of minor bugs. Jshint errors are all fixed.
Bump patch version
Added coverage reporting.
Added coverate badge to readme with some minor updates.
Bump patch version.
added 'upcoming' function