Web Test Fix 4.5alpha1

Fix For - 
WebTest_Contact_ContactReferenceFieldTest.testContactReferenceField
WebTest_Contact_TaskActionAddToGroupTest :: All Functions
WebTest_Contribute_UpdatePendingContributionTest
WebTest_Member_FixedMembershipTypeTest
WebTest_Event_AddParticipationTest.testEventParticipationAddWithMultipleRoles
WebTest_Member_OnlineMembershipRenewTest