fix and improve hotel creation/serialization
fix curMinPrice
performance improvements
cleanup
improved db test
various hot bugfixes
compute scores about recursive pruning
add printout at every step
refactoring : additionalTransfer
improved logging while parsing db
add variable dbFileName
fix db checkup printout
little improvements
add var acceptablePrice in Journey

Conflicts:
	amadeus/src/journeyPlanner/Journey.java
	amadeus/src/journeyPlanner/Main.java
improve solutions updating
improve rand init + shuffle
fix acceptablePrize init
perf improvements : optimize reqs and hashmap for cities in db
fix additionalTransfer
split db in fullDB and WorkingDB