[OPENENGSB-3761] handle null values correctly
[OPENENGSB-3767] Add private constructor to ModelAsserts utility class
[OPENENGSB-3768] Add license headers to userync code
[OPENENGSB-3768] Add license headers to usersync .rules files
[OPENENGSB-3769] Remove entryStructureDefinition file extension
[OPENENGSB-3770] ldif heading whitepsace fixes
[OPENENGSB-3761] fix review issues
Merge pull request #900 from thrau/master

Checkstyle fixes and license headers related to ldap usersync code
Merge pull request #898 from stfnsche/master

[OPENENGSB-3761] handle null values correctly
[OPENENGSB-3774] Fix checkstyle errors in RequestHandlerImpl and Test code
[OPENENGSB-3775] Fix checkstyle errors in LogService
Merge pull request #901 from thrau/master

[OPENENGSB-3774] Fix checkstyle errors in RequestHandlerImpl and Test
[OPENENGSB-3778] fix checkstyle errors in itests
[OPENENGSB-3782] Make QueryRequest serializable
Merge pull request #902 from stfnsche/master

[OPENENGSB-3778] fix checkstyle errors in itests
[OPENENGSB-3765] The userprojects LDAP connector config file is buggy
Merge pull request #904 from Mercynary/OPENENGSB-3765

Openengsb 3765 - Correction of LDAP improvements
[OPENENGSB-3783] Implement hashCode and equals for QueryRequest
[OPENENGSB-3753] Make CommitMetaInfo serializable
[OPENENGSB-3783] Fix checkstyle errors in QueryRequest