Implement Xing Contacts domain API
#spring-social-xing-2
Implement Xing Contacts domain API
#spring-social-xing-2
Merge branch 'spring-social-xing-2'

Conflicts:
	gradle.properties
	spring-social-xing/src/main/java/org/springframework/social/xing/api/impl/json/XingModule.java
improved spring configuration support
cleanup
add upload to bintray capabilities for travis
Merge remote-tracking branch 'origin/master'