Bugfix for DataBuffer.
Merge branch 'next' of github.com:maidsafe/MaidSafe-Common into next
Merge branch 'next' of github.com:maidsafe/MaidSafe-Common into next
Merge branch 'next' of github.com:maidsafe/MaidSafe-Common into next
Fixed significant bug in log.h whereby log messages were not compiled away in Release builds.
VLOG use UTC time with year-month-day
move timestamp to be the first item in VLOG
Merge branch 'next' of github.com:maidsafe/MaidSafe-Common into next

Conflicts:
	include/maidsafe/common/visualiser_log.h
Enabled noexcept on VS2014 and later.
Merge remote-tracking branch 'origin/next' into buffer_cleanup