Added code for bitwise or operator. Example 11 produces now correct output.
Added code for bitwise or operator.
Example 11 produces now correct output.

svn path=/trunk/; revision=9497

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