Partially addresses issue #3, although iterators used here are inefficient.
Scalar columns are now converted to vector columns when ReadArray is called.
Partially addressing issue #3. Files with the same EXTVER in each table can now be read. Note, this is still a violation of the FITS convention, so any file that does this is not a valid FITS file.
Accidently removed OI_VIS2 records.
Converted the (u3,v3) point to conform to the OIFITS specification exactly. Closes #4.
fixed conflict with develop merge