[LANG-102] [lang] Refactor Entities methods. http://issues.apache.org/jira/browse/LANG-102. Refactored escape and unescape methods to remove code duplication.
[LANG-102] [lang] Refactor Entities methods.
http://issues.apache.org/jira/browse/LANG-102.
Refactored escape and unescape methods to remove code duplication.

git-svn-id: d201ecbade8cc7da50e7bffa1d709f7a0d92be7d@491695 13f79535-47bb-0310-9956-ffa450edef68

rikles/commons-lang,anzhdanov/seeding-realistic-concurrency-bugs,anzhdanov/seeding-realistic-concurrency-bugs,rikles/commons-lang,rikles/commons-lang,mureinik/commons-lang,anzhdanov/seeding-realistic-concurrency-bugs,mureinik/commons-lang,mureinik/commons-lang