Rename the WT_FH.refcnt field to be WT_FH.ref to match the new
reference-count mapped field name (Windows change to match 29851b4).
KNF
KNF
Create a separate list of Windows' files, that way we can have
OS-specific files and share OS files between ports.
Minor Windows SConstruct & Build fixes
posix_fallocate fails on Solaris except for UFS -- if we get EINVAL
from posix_fallocate, set a static so we don't try it again, and use
ftruncate instead. Reference #1267.
Merge pull request #1268 from markbenvenuto/minor_win_build

Minor Windows SConstruct & Build fixes
Merge pull request #1269 from wiredtiger/posix_fallocate-on-solaris

posix_fallocate fails on Solaris except for UFS
We need to know the hot backup files were written to disk, and we can't
call fsync() on Windows, #ifdef for now with a call to FlushFileBuffers().
FlushFileBuffers returns 0 on failure, then we have to call GetLastError.