emit "action resumed" message only when the resume was actually successful
bugfix: invalid error number was logged
add global and action-parameter action.reportSuspensionContinuation
doc: document new parameters
Merge branch 'v7-stable' into master-merge

This was a rather complicated merge as we needed to migrate some
per-action settings (v7) to action instance settings (v8).

Conflicts:
	action.c
	action.h
	doc/global.html
	runtime/glbl.c
Merge branch 'master' of git+ssh://git.adiscon.com/git/rsyslog