Phase 1: Support Unicode 7.0.0 beta in classes which are Independent from ICU
Date start: 2014/05/12
Date end: 2014/05/23

Phase 2a: Support Unicode 7.0.0 and port ICU53 & 54 milestone 1
Date start: 2014/06/16
Date end: 2014/09/30

Phase 2b: Test development for Unicode 7.0.0
Date start: 2014/09/01
Date end: 2014/09/30

Phase 3: Add necessary modifications after ICU 54 are released
Date start: 2014/10/20
Date end: 2014/12/26

Phase 4: Update testcases if needed
Date start: 2015/01/05
Date end: 2015/01/16

Phase 5: Investigate ICU55 milestone 1 and update implementation if necessary.
Date start: 2015/01/05
Date end: 2015/01/23