Edited install.sh: retaining both 32/64-bit libs
Edited install.sh: retaining both 32/64-bit libs

setup.sh now inserts both 32- and 64-bit gfortran lib paths in
LD_LIBRARY_PATH.  Also adding gfortran/gcc/g++ to PATH. Correcting
typos.

zbeekman/opencoarrays,sourceryinstitute/opencoarrays,zbeekman/opencoarrays,sourceryinstitute/opencoarrays,jerryd/opencoarrays,jerryd/opencoarrays,sourceryinstitute/opencoarrays,zbeekman/opencoarrays,jerryd/opencoarrays