feat(serverconfig): New requesthandler to request the serverconfig via rest
feat(serverconfig): Implemented a angular service to read the server config
feat(gitconnect): The provider will now be disabled when it's not in the list of the supported providers
feat(serverconfig): Added the config.json
Merge pull request #48 from mdwiki/feature/ProviderConfig

ServerConfiguration wich provider should be available on the gitconnect page