Fixed a couple of issues with fig18 dependencies: 1) "gem install fig18" wasn't working for Mac...was bringing in the wrong libarchive-static.  I reworked the fig gems so that Windows instead of Linux was the explicit dependency.  However, this broke the Windows fig18 install... 2) Fixed the "gem install fig18" for Windows.  This required renaming the built gems to have the architecture be 'i386' instead of 'x86'; I don't know why 'gem build' does this, but if the gem is called 'x86' and published, then it is not picked for installing by a subsequent 'gem install fig18'.  Go figure...
Fixed a couple of issues with fig18 dependencies:
1) "gem install fig18" wasn't working for Mac...was bringing in the
wrong libarchive-static.  I reworked the fig gems so that Windows
instead of Linux was the explicit dependency.  However, this broke
the Windows fig18 install...
2) Fixed the "gem install fig18" for Windows.  This required
renaming the built gems to have the architecture be 'i386' instead
of 'x86'; I don't know why 'gem build' does this, but if the
gem is called 'x86' and published, then it is not picked for
installing by a subsequent 'gem install fig18'.  Go figure...

klimkin/fig,klimkin/fig