Merge branch 'devel-0.4' into devel-0.5

Conflicts:
	VERSION
Merge branch 'devel-0.4' into devel-0.5
Merge branch 'devel-0.5' of https://github.com/bisdn/rofl-core into devel-0.5
revised classes cofmeterband* and cofmeterbands
new class: cofmsg_meter
added OFPT_METER_MOD message support to crofctl_impl, crofbase, crofsock, coferror_msg
crofdpt/crofdpt_impl => added method send_meter_mod_message()