Add possibility to set threadpool
Had to remove server creation from constructor
Removed small bug with connector idletimeout
Merge pull request #15 from vbreivik/issue14/threadpool

Issue #14 - Add possibility to set threadpool. Thank you vbreivik.
Changed port in EmbeddedJettyBuilderTest to not collide with Check Point VPN
[maven-release-plugin] prepare release embedded-jetty-1.1+9.1
[maven-release-plugin] prepare for next development iteration