Initial work on isolating usage of the Windows header file.
Correct line-endings in the new header file.
Merge updates from trunk.
Further work on Windows header file reform.
Fix comment.
Enhance the Win32 VFS I/O retry logic.
Merge updates from trunk.
Merge updates from trunk.
Add the win32-none VFS which omits rollback-journal locking.
Add some OSTRACE calls for consistency.
Change from using the win32-none VFS to just a query parameter.
Merge in all recent changes and enhancements from trunk.
Add the immutable=TRUE query parameter and SQLITE_IOCAP_IMMUTABLE, either
of which prevents locking of the database and omits tests for existance
of journal files.
Avoid unnecessary xUnlock operations on temp file.
Take out the special handling of nolock=true in os_win.c and add it to
pager.c, so that it works for all VFSes.  Add the pPager->noLock boolean
for clarity.
Fix a broken test case in fuzz.test.
Merge updates from trunk.
Merge updates from trunk.
Enhance the Win32 VFS I/O retry logic.
Fix several header file comments.  No changes to code.