Converted file_transfer to more generic file_manager
Added file/dir exists? method to file_manager
Added download method
Renamed WinRMUploadFailed to WinRMUploadError

- Added WinRMDownloadError exception
Fixed require path for file_manager
Added rwinrmcp util for copying files over winrm
New rwinrm syntax
Add rwinrmcp as binary to gemspec
Update readme for FileManager changes
Abort if there's a read error
Remove ruby progress bar from gemspec
Fix file upload unit tests
Merge pull request #91 from WinRb/winrm-filemanager

Winrm filemanager