Localized Crontab and refactoring

git-svn-id: https://svn.apache.org/repos/asf/syncope/branches/1_1_X@1483380 13f79535-47bb-0310-9956-ffa450edef68
code enhancement

git-svn-id: https://svn.apache.org/repos/asf/syncope/branches/1_1_X@1483684 13f79535-47bb-0310-9956-ffa450edef68
Refactoring some constants and new abstract tasks class

git-svn-id: https://svn.apache.org/repos/asf/syncope/branches/1_1_X@1483997 13f79535-47bb-0310-9956-ffa450edef68
Builder instead of two constructors in rolepanel

git-svn-id: https://svn.apache.org/repos/asf/syncope/branches/1_1_X@1484007 13f79535-47bb-0310-9956-ffa450edef68
Merge from 1_1_X branch

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