updated to 3.5.6-SNAPSHOT
updated dependency on Membrane Service Proxy to 4.0.9
compile success, but still a few TODOs
updated groupId to org.membrane-soa.service-proxy
mark Eclipse Equinox services as autostart
added eclipse-feature to include root files
fixed app icons
call rule.init() before using them
include log4j config for Membrane service-proxy-core