airport data access object
some movements in this class on order to work with its data access object
no longer needed, sorry Stock.java
new features to retrieve and process API answers. Improvements in the calls to API
new header added to connect with Despegar API, for testing purposes it will be not part of the final version
first version of this unit test. It will be improved once I put the find by text on it
API connection testing with headers. Also I put a main method to test a call api of Despegar with a fake string in the header to communicate
improved the dependency to ehcache
change of som div to buttons and ember integration
minor changes with buttons sizes and borders
something like, well, it now it's barely using ember
new properties for logging nearsoft, hbernate, hibernate.SQL and ehcache package activities,
enabling for second level of cache with ehcache
enabling of spring framework  to handle transactions. Also remove the dependency to DAO. From now on will be by autowired
sorry, you are not a service, and maybe you will never be
integration with headers. Hope this works this way permanently
change the identifier for a long. It will be useful someday
@Repository added
removed some unused imports
equals, hashCode and toString methods added