#362 add default body messages
#362 fix branch
#362 fix notifications bug
#362 fix conflicts
#362 fix conflicts
#362 add notification sounds
Issue #518 - creating the fixture class
Issue #518 - adding createUser function
Issue #518 - adding createTangle function
Issue #518 - adding createRequest function
Issue #518 - adding createTransaction function
Merge pull request #512 from ndomar/c5_MohamedShaban_#45_integrate_notifications

S[45]: Notification System integration
Issue #518 - adding createClaim function
Issue #518 - adding makeUsers function
Issue #518 - adding makeUserTangles function
Issue #518 - adding makeOffers function
Issue #518 - adding makeClaims function
Merge pull request #519 from ndomar/C1_HebaAamer_#19_addingTestingFixture

Testing fixture : Adding leaving tangle fixture.
Issue #521 - Fix margin bugs
Merge pull request #523 from ndomar/bugFix_#521

Issue #521 - Bug: Fixing margins