zweimal (and some Test improvments)

Remove unused variable

See merge request sharing/codeability-sharing-platform!34

Resolve "Teaser Content as Word Cloud"

See merge request sharing/codeability-sharing-platform!35

106-teaser-content-as-word-cloud

Conflicts:
	src/main/java/at/ac/uibk/gitsearch/service/dto/SearchResultsDTO.java

Resolve "Die Klassen Person und GitProject gibt es zweimal"

See merge request sharing/codeability-sharing-platform!32

Fehlermeldung download

See merge request sharing/codeability-sharing-platform!33

Fix mailto link

See merge request sharing/codeability-sharing-platform!31

Let the mailto link actually include
the email address instead of consisting
only of "mailto:"

Resolve "Add Additional Health Checks"

See merge request sharing/codeability-sharing-platform!26

Pushing back production changes to development

See merge request sharing/codeability-sharing-platform!24