Fixed bugs with beginning of file treatment for file family members.  Added handing of BOP0 & added PrevFamilyFile calls as needed to seek functions to allow transparent backwards traversal through family members.  Added a ridiculous amount of debug output & improved error message treatment.  Fixed multiple ungetc (potential) bug.
Fixed bugs with beginning of file treatment for file family members.  Added
handing of BOP0 & added PrevFamilyFile calls as needed to seek functions
to allow transparent backwards traversal through family members.  Added a
ridiculous amount of debug output & improved error message treatment.  Fixed
multiple ungetc (potential) bug.

svn path=/trunk/; revision=2508

FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot