vchoi_fork

[svn-r2611] Purpose:
    Rearrange code
Description:
    The data sieve buffering code for contiguously stored datasets was
    wedged in the H5F_arr_read/H5F_arr_write routines.
Solution:
    Created a new H5Fcontig.c to hold I/O routines for contiguously stored
    datasets (like H5Fistore.c for chunked dataset I/O routines) and moved
    data sieving code into those routines.
Platforms tested:
    Solaris 2.6 (i.e. baldric)