partial rollout support
add agent page & strategy crud support
Merge pull request #276 from leoliang/master

partial rollout support & add agent page & strategy crud support
Merge branch 'master' of https://github.com/dianping/phoenix into
softbalance

Conflicts:
	phoenix-load-balancer/pom.xml
	phoenix-load-balancer/src/test/resources/configure.xml
	phoenix-load-balancer/src/test/resources/storeTest/configure_tuangou.xml
	phoenix-load-balancer/src/test/resources/storeTest/configure_www.xml