Fixes for Windows:

I'm now creating the temp file in Unix format. The problem was
calculating the byte position in Windows format - and while it might be
possible, it's much simpler to use Unix format for the temp file.

Also updated the readme.

editors/vim/README.md

@@ -12,13 +12,7 @@ If you need to use an include path, use the global variable g:dscanner\_includeP
 
 Using on Windows
 ================
-Under Linux, Dscanner can /etc/dmd.conf to get the default include paths. I've found no such file in the Windows distribution of dmd(it's probably in the registry), so you need to configure it manually. You need to \src\phobos and \src\druntime\import folders from where you installed dmd. For example,
+Under Linux, Dscanner reads /etc/dmd.conf to get the default include paths. The equivalent file in Windows - 'sc.ini' - does not have a fixed location, so you need to configure the import paths manually. You need the \src\phobos and \src\druntime\import folders from where you installed dmd. For example,
 ```
 let g:dscanner_includePath=['C:\Program Files\dmd2\src\phobos','C:\Program Files\dmd2\src\druntime\import']
 ```
-
-Also, the Dscanner has a problem reading files in windows format, so use
-```
-set fileformat=unix
-```
-to make you files use unix format.

editors/vim/autoload/dcomplete.vim

@@ -66,8 +66,13 @@ function! s:runDScanner(scanCommand)
 
 
 	let l:tmpFileName=tempname()
+	"Save the temp file in unix format for better reading of byte position.
+	let l:oldFileFormat=&fileformat
+	set fileformat=unix
+	let l:bytePosition=line2byte('.')+col('.')-2
 	exec "write ".l:tmpFileName
-	let scanResult=system(l:dscannerCommand.' --'.a:scanCommand.' '.(line2byte('.')+col('.')-2).' <'.shellescape(l:tmpFileName))
+	let &fileformat=l:oldFileFormat
+	let scanResult=system(l:dscannerCommand.' --'.a:scanCommand.' '.l:bytePosition.' <'.shellescape(l:tmpFileName))
 	call delete(l:tmpFileName)
 	return scanResult
 endfunction