[GSCKATA-39] Set the Java language level to 1.8.

git-svn-id: svn+ssh://gsckata.svn.services.gs.com/svnroot/gsckata/branches/solutions-java8-jcf@94 66aded80-052e-4344-91a8-38ab96726eea
[GSCKATA-39] Set the Java language level to 1.8.

git-svn-id: svn+ssh://gsckata.svn.services.gs.com/svnroot/gsckata/branches/solutions-java8-jcf@95 66aded80-052e-4344-91a8-38ab96726eea
[GSCKATA-41] Upgrade to GS Collections 4.2.

git-svn-id: svn+ssh://gsckata.svn.services.gs.com/svnroot/gsckata/branches/solutions-java8-jcf@102 66aded80-052e-4344-91a8-38ab96726eea