Added VERSION_STRING field and User-Agent and Server default headers.
Converted Header and HeaderCollection to java.
Fixed threading stuff, for now.
Filled in EchoHandlerTest.
Filled in CustomHandlersTest.
Renamed and filled in DefaultRequestHeadersTest.
Started filling in BodiesTest.
Fixed body reading.
[maven-release-plugin] prepare release gdeproxy-0.9.0
[maven-release-plugin] prepare for next development iteration
Merge branch 'master' of github.com:richard-sartor/gdeproxy into repos

Conflicts:
	src/main/groovy/org/rackspace/gdeproxy/Deproxy.groovy
	src/main/groovy/org/rackspace/gdeproxy/DeproxyEndpoint.groovy
	src/main/groovy/org/rackspace/gdeproxy/MessageChain.groovy
	src/main/groovy/org/rackspace/gdeproxy/Request.groovy
	src/main/java/org/rackspace/gdeproxy/DeproxyEndpointListenerThread.java
	src/main/java/org/rackspace/gdeproxy/Header.java
	src/main/java/org/rackspace/gdeproxy/HeaderCollection.java