WHAT:
credit history page implemented.
can be visited by clicking specific button in a free credits dropdown.
WHY:
UI didn't display remaining coupon value.
coupons and referral items (in future) are displayed in the same place.
Change-Id: I495fd7a99f2ea5117152aaf8f495bd5322f02588
WHAT:
1. Deposit & Billing history view was divided to be shown separately as Deposit History and Billing History
2. Datepicker was removed from billing page
WHY:
billing UX enhancements
Change-Id: Ie183849ef0965169997674ce37b71db38a562fc2