Merge pull request #6 from jmkgreen/master

Add remaining UserProfile data from Google Plus API
scm section updated
reverted
version upgrade
maven release instructions
maven release instructions
readme update about maven repo
release instructions updated
release instructions fixed
Fixes Glamdring/google-plus-java-api#8 by bumping spring web to 4.0.4 (current) and spring-social-core to 1.1.0, migrating to newer packages of Jackson.