Fix the command line string formatting problems
Make dutyl#core#bytePosition always use unix file format
Fix usage for Windows without VimProc

Also allow to disable VimProc in Windows
Merge remote-tracking branch 'origin/feature/fix-windows-issues' into develop

Conflicts:
	README.md
	doc/dutyl.txt
Support both dub.json and package.json as the DUB file
Change the DCD server control functions to use call instead of echo
Use DUB's --annotate flag to prevent downloading dependencies
Register import paths immediately when starting the DCD server

This will make DCD scan them in the background and prevent the
autocomplete from freezing when DCD scans all the import paths.
Clean import paths from last character if it's a path separator
Bump minor version.

Also fix a typo in the docs