Using StringUtils.isEmpty() when testing Strings. Renamed the parameter string to the more commonly used str in removeStart() and removeEnd.
Using StringUtils.isEmpty() when testing Strings.
Renamed the parameter string to the more commonly used str in removeStart() and removeEnd.


git-svn-id: d201ecbade8cc7da50e7bffa1d709f7a0d92be7d@137707 13f79535-47bb-0310-9956-ffa450edef68

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