chore(ci): update travis configuration

We ignore the Pods file in our .gitignore file. Therefore we need to run a pod install on the travis ci before we are able to build the project.
docs(ci): update documentation to be parable by appledoc

Remove the asterisks in front of the lines to have documentation comments that can be parsed by appledoc, which is used by cocoadocs.org
Merge pull request #1 from Hotel-Reservation-Service/feature/continuous_integration

Feature/continuous integration