Some Access 2010 files use 0x03 as the version number rather than
0x0103. For this reason I have changed the call to mdb_get_int32 to
mdb_get_byte.
In addition, according to the Library of Congress page:
https://www.loc.gov/preservation/digital/formats/fdd/fdd000463.shtml
Access 2016 uses 0x05 as the version number. I have inferred from the
Wikipedia page that Access 2013 likely uses 0x04.
One can now compile with CFLAGS="-std=c99 -D_POSIX_C_SOURCE=1 -pedantic"
Trade getopt.h function for glib equivalents:
This mean all utilities now have long option names.
Adjust manuals and bash_completion accordingly.
Added missing manual and bash_completion for mdb-import.
