code cleanup

src/main/java/org/codelibs/fess/api/WebApiRequest.java

src/main/java/org/codelibs/fess/api/es/EsApiManager.java

src/main/java/org/codelibs/fess/api/gsa/GsaApiManager.java

src/main/java/org/codelibs/fess/api/json/JsonApiManager.java

.../java/org/codelibs/fess/app/service/SearchLogService.java

...ain/java/org/codelibs/fess/app/web/admin/AdminAction.java

...ess/app/web/admin/accesstoken/AdminAccesstokenAction.java

...codelibs/fess/app/web/admin/backup/AdminBackupAction.java

...delibs/fess/app/web/admin/badword/AdminBadwordAction.java

...libs/fess/app/web/admin/boostdoc/AdminBoostdocAction.java

.../fess/app/web/admin/dataconfig/AdminDataconfigAction.java

.../app/web/admin/dict/kuromoji/AdminDictKuromojiAction.java

...ss/app/web/admin/dict/mapping/AdminDictMappingAction.java

...pp/web/admin/dict/protwords/AdminDictProtwordsAction.java

.../dict/stemmeroverride/AdminDictStemmeroverrideAction.java

...pp/web/admin/dict/stopwords/AdminDictStopwordsAction.java

...ss/app/web/admin/dict/synonym/AdminDictSynonymAction.java

...app/web/admin/duplicatehost/AdminDuplicatehostAction.java

...ess/app/web/admin/elevateword/AdminElevatewordAction.java

...libs/fess/app/web/admin/fileauth/AdminFileauthAction.java