cygwin fixes added#6

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MorganDavis wants to merge 5 commits intoioerror:masterfrom

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Commits on Feb 4, 2011

Fixed handling of certificate serial numbers

Ian Gallagher
authored and
MorganDavis
committed
Add proper serial output for XML output mode

Ian Gallagher
authored and
MorganDavis
committed
Fix typo instances of 'preferred'

Ian Gallagher
authored and
MorganDavis
committed
Fix gcc flags order for building under Cygwin

Ian Gallagher
authored and
MorganDavis
committed
Added 'cygwin' target to Makefile so that Windows users can easily compile.
Morgan Davis
committed