doc/FAQ.html : Add missing opening <P> tag.
src/alac.c : Increase ALAC_BYTE_BUFFER_SIZE to 82000.

This seems to work for 8 channel files (max allowed by ALAC spec)
of white noise.

Closes : https://github.com/erikd/libsndfile/issues/10
Add Scripts/linux-to-win-cross-configure.sh.
Read the ALAC 'pakt' header and stash the values.
src/sfendian.h : Add functions psf_put_be64() and psf_put_be32().
src/alac.c : Start work on filling on the 'pakt' chunk header.
src/alac.c : The 'pakt' chunk header should now be written correctly.
configure.ac : Use PKG_INSTALLDIR when it exists.
Drop tests for and CPP hackery for C99 struct flexible array feature.
src/alac.c : Fix valgrind invalid realloc.