Add missing eclipse IDE config files to .gitignore

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/lang/trunk@1519293 13f79535-47bb-0310-9956-ffa450edef68
Fix typo

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/lang/trunk@1519294 13f79535-47bb-0310-9956-ffa450edef68