RxJava 1.0.

(cherry picked from commit 298454e036351fc6690d425e24cbae2da26441f7)

Conflicts:
	pom.xml
Prepare version 1.8.0.

(cherry picked from commit dbf91444701def3e992f36073ea795431f046ec2)
Merge branch 'master' of https://github.com/square/retrofit