#54 updated bill print dialog; updated bill list filtering and loading functionality
#54 added coffee icon
#9
#54 #9
#9 renamed main window controls; #47 revealed few settings on additional panel;
#54 updated cursor type for buttons and changed bill row color for different states
updated legalPrinter interface and existed driver implementations
updated non-fx cheque fn. updated menu updater.
added sensor images
stable -> development