Implement Lookup feature

pom.xml

.../de/unipotsdam/cs/toolup/database/DatabaseController.java

...java/de/unipotsdam/cs/toolup/model/ApplicationLookup.java

...ava/de/unipotsdam/cs/toolup/ws/beans/ApplicationBean.java

.../de/unipotsdam/cs/toolup/ws/beans/BusinessObjectBean.java

...a/de/unipotsdam/cs/toolup/ws/resource/LookupResource.java

...e/unipotsdam/cs/toolup/database/ToolUpPropertiesTest.java

...sdam/cs/toolup/ws/integration/AbstractTestWebService.java

...m/cs/toolup/ws/integration/IntegrationTestWebService.java

...otsdam/cs/toolup/ws/integration/LookupTestWebservice.java

.../unipotsdam/cs/toolup/ws/resource/LookupResourceTest.java