Added composite logging

Allows use of multiple logging factories (e.g. console and file)
issue #40 - remove this misplaced (and redundant check)
Merge pull request #191 from connamara/parsercheck_40

close #40 - remove this misplaced (and redundant check)
Merge branch 'composite_log' of github.com:roji/quickfixn into composite_log_180
credit for #180
add IDisposable support to CompositeLog (#180)
Merge pull request #192 from connamara/composite_log_180

CompositeLogFactory - original #180 plus IDisposable support
test to confirm issue #179
fix for #179 (separately/identically submitted by @TomasVetrovsky in #178 and @klmcwhirter in #162)
Merge pull request #193 from connamara/parsesubgroup_179

fix for #179 (issue parsing message groups when null message factory)
credits for #179
Merge branch 'master' of github.com:connamara/quickfixn
Merge branch 'master' into seqreset_102

Conflicts:
	NEXT_VERSION.md
	web/views/about/credits.md