Some sonar fixes. Also removed all the @ids in the javadoc
Merge pull request #133 from crawljax/sonar-fixes

Some sonar fixes. Also removed all the @versions in the javadoc
Merge remote-tracking branch 'origin/master' into issue-97-follow-all-hrefs

Conflicts:
	core/src/main/java/com/crawljax/core/state/StateVertex.java