- changing currentTransaction property to public
- fixed the bug for displaying previous transactions
- updating total amount of an unfinished transaction in the UI
+ fix the coupon image bug
+ fix the unit image bug
+ simplified the model removing duplicate variables in RCM and USERUI
+ import the RCMUI transactions improvements from ankit
+ fix the unit image
+ fix the total amount bug
+ display money or coupons final message
+ fix the activate bug
+ added getWeightOfMachine
+ finished filtering the statistics by time
Wraping up

- java docs creation
- final method definition for the UI statistics