[OPENENGSB-3858] executeWithSystemPermissions can not make EDB commit
[OPENENGSB-3859] Use SecurityContext methods to execute synchronization
with root permissions (File)
[OPENENGSB-3859] Use SecurityContext methods to execute synchronization
with root permissions (JIRA)
[OPENENGSB-3859] Use SecurityContext methods to execute synchronization
with root permissions (LDAP)
Merge pull request #927 from openengsb/OPENENGSB-3859

SecurityContext instead of admin login and RootAuthenticationToken fix/improvement