Accommodating changes to NodeId.
Merge pull request #79 from Fraser999/MAID-537

Accommodating changes to NodeId.
Merge branch 'next' into account_transfer

Conflicts:
	src/maidsafe/vault/cache_handler/tests/service_test.cc
	src/maidsafe/vault/data_manager/tests/service_test.cc
	src/maidsafe/vault/pmid_manager/service.cc
	src/maidsafe/vault/pmid_manager/tests/service_test.cc
	src/maidsafe/vault/pmid_node/tests/service_test.cc
	src/maidsafe/vault/tests/group_db_test.cc
	src/maidsafe/vault/tests/sync_test.cc
updating account transfer inline with node id changes.
Merge remote-tracking branch 'upstream/next' into next
Merge remote-tracking branch 'upstream/account_transfer' into next
avoids throwing when not required
Merge pull request #83 from mmoadeli/MAID-BUG-FIX7

Maid bug fix7
further removal of unnecessary exception throw.
Merge pull request #84 from mmoadeli/MAID-BUG-FIX8

further removal of unnecessary exception throw.