Workaround to allow SequenceReset messages to omit tag 122 (OrigSendingTime) even when tag 43 (PossDupFlag) = Y. This goes against the FIX specification, but it is common for exchanges etc to omit this field.

Utilised by adding the following line to the settings config file:

RequiresOrigSendingTime=Y

Default behaviour is to require the field, as per the FIX specification.
Bug fix
bug fix
documentation and comments for DoPossDup()
Improve code readability
Merge branch 'master' of github.com:thomasfleming/quickfixn into seqreset_102
Merge branch 'master' into seqreset_102

Conflicts:
	QuickFIXn/Session.cs
unit tests for #102
issue #102 - comment adjustments
document the new setting
credits for #102
Merge branch 'master' into seqreset_102

Conflicts:
	NEXT_VERSION.md
	web/views/about/credits.md
Merge pull request #190 from connamara/seqreset_102

update to PR #102 - allow SeqReset to omit tag 122