Minor clean-up to FlightSearchController
Add a mapper to translate the flight stats api response to our model objects. Change flightSearchServices to use our rest client.
Add RestClientConfig.java
Remove a dumb comment.
Rename Flight's attribute airline to airlineName
Add ApplicationConfigurationHibernateRepository.
Delete redundant local variable.
Change weaker declaration accesses.
Add final modifier to some declarations.
Remove redundant throws.
Remove unused imports.
Replace explicit types with <>.
Remove typo.
Remove redundant type cast.
Add some JsonIgnore annotations. Move some annotations for better reading.