Merge pull request #4 from techdivision/master

Merge techdivision/master into wagnert/master
some minor annotation changes
Change UUID to primary key for AppNode
Merge pull request #65 from wagnert/0.5.8-beta

Change UUID to primary key for AppNode
Add bugfix to avoid double app registration in system configuration during deployment
Merge pull request #66 from wagnert/0.5.8-beta

Add bugfix to avoid double app registration in system configuration duri...
Change to NodeInterface for AppService::persist() method
Merge pull request #67 from wagnert/0.5.8-beta

Change to NodeInterface for AppService::persist() method
Re-Intergrate automatic worker restart when shutdown after a number of requests
Merge branch '0.5.8-beta' of github.com:wagnert/TechDivision_ApplicationServer into 0.5.8-beta
Merge pull request #68 from wagnert/0.5.8-beta

Re-Intergrate automatic worker restart when shutdown after a number of requests
mergin upstream changes
added missing attribute
added attribute initialisation
Merge pull request #11 from wick-ed/0.5.8-beta

refactored for pbc usage
Merge pull request #70 from wagnert/0.5.8-beta

Added missing attribute
Implement service method to delete an app
Merge branch '0.5.8-beta' of github.com:wagnert/TechDivision_ApplicationServer into 0.5.8-beta
Merge pull request #71 from wagnert/0.5.8-beta

Implement service method to delete an app
Replace error_log() with system logger + refactor system logger integration