Database refactorisation
Remove no longer used properties
Rename dbUpdate to dbUpdateScore
Update comments in Database.java
Call ship names from Utils
Move validation warnings to Utils
Move ship descriptions to Utils
Add quit game dialog text to Utils
Add website dialog to Utils
Add website URL to Utils
Add missing comment
Move more to Utils
Move achievements to Utils
Move HTP to Utils
Missed out a few items accidentally
Merge pull request #439 from dreamteam69/master

Database refactorisation and GUI elements are now in Utils