Modify tabsheet
Merge remote-tracking branch 'mats/master'

Conflicts:
	src/hlrv/flybook/FlybookUI.java
Update database and some smaller changes/fixes

-Updated flybook.db
-Updated DBConstants.java
-Removed column prefixes and modified more code to use DBConstants
-Comment problematic code in FlightsTable.java
-Changed FlightEntriesFSDelegate.getQueryStatement(..) to not use alias
for FligthEntries in sql statement, because it causes problems with
filters.
-Renamed FlightEntry to FlightItem (wrapper class)
-FlightsContainer now encapsulates SQLContainer not extend it
Change "hash" to "passwd"
Merge remote-tracking branch 'mats/master'

Conflicts:
	src/hlrv/flybook/FlightsContainer.java
	src/hlrv/flybook/FlybookUI.java
	src/hlrv/flybook/auth/Auth.java
	
Comment throws Exception in Auth.getCurrentUser() for now
Add AirportsContainer and delegate

-add countries combobox in FlightForm (work in progress)
-new package hlrv.flybook.containers
Re-remove user data from sessioncontext
Use the authentication