moved the string buffer inside the session object
added a growing reconnection delay
Merge remote-tracking branch 'origin/dev' into dev

Conflicts:
	server/modules/filter/mqfilter.c
moved back to function local string buffers
Merge remote-tracking branch 'maxscale/develop' into dev

Conflicts:
	server/modules/filter/Makefile
updated the filter with 1.0-beta filter module changes
Merge branch 'dev' into filterharness

Conflicts:
	server/modules/filter/Makefile
	server/modules/filter/mqfilter.c