[cleanup] code cleanup mostly to improve quality

git-svn-id: https://spf4j.googlecode.com/svn/trunk@477 d408096a-aa36-d13b-a661-48d75a76e993
[cleanup] code cleanup mostly to improve quality

git-svn-id: https://spf4j.googlecode.com/svn/trunk@478 d408096a-aa36-d13b-a661-48d75a76e993
[cleanup] Either is the right abstractio, not pair

git-svn-id: https://spf4j.googlecode.com/svn/trunk@479 d408096a-aa36-d13b-a661-48d75a76e993
[cleanup] more findbugs checks

git-svn-id: https://spf4j.googlecode.com/svn/trunk@480 d408096a-aa36-d13b-a661-48d75a76e993
Merge branch 'master' of https://github.com/zolyfarkas/spf4j