cofmatch => fixed minor bug in API => cofmatch::operator() is now const
cofflowstats => changed default value for out_port and out_group in class cofflow_stats_request to OFPP_ANY and OFPG_ANY
ciosrv => fixed bug => do not dump ciosrv instance, when it has been already destroyed
ciosrv.h => added new method restart_timer()
cpipe.h => added new methods get_readfd() and get_writefd()
rofl-common => fixed bug => cofmsg_flow_stats_request => remove unnecessary call to method pack() in constructor
rofl-common => crofbase => fixed potential bug => changed methods drop_dpt() and drop_ctl() => copy parameter instead of using a const reference, in order to avoid valgrind complaints under certian circumstances
rofl-common => crofdpt_impl => fixed potential bug in race condition of terminating crofdpt_impl instances
changed VERSION file to v0.5.1dev
adjusted rofl-common to llvm clang 3.4
cofmatch => added has_XXX() methods
rofl-pipeline => of1x_statistics => fixed bug for group statistics => copy-and-paste error, byte_count != packet_count
Merge branch 'devel-0.5' into devel-0.6

Conflicts:
	VERSION
	src/rofl/datapath/pipeline/openflow/openflow1x/pipeline/of1x_statistics.c