change version number to reflect custom branch
doc: add base doc for mmrfc5424addhmac

while it probably is not of general interest, at least some
rough facts are conveyed.
doc: describe mmrfc5424addhmac log verification method
doc: describe mmrfc5424addhmac parameters
Merge branch 'c10-neu' into c10

Conflicts:
	doc/mmrfc5424addhmac.html
doc: linking between mmrfc5424addhmac resources
Merge branch 'c10'

Conflicts:
	configure.ac
	doc/rsyslog_conf_modules.html
doc: add new helpful link to impstats doc
Merge branch 'v7-stable'