GitLab

- Added support for specifying the path to the mysqldump binary - required for Windows as it's not in the PATH variable by default
- Changed gdrive_bin (Directory) config option to gdrive_path which directly specifies the location of the downloaded gdrive binary
- Confirmed as working in Windows 10 (Using Powershell 6.2.0) and Windows Subsystem for Linux
- .creds.ini now created with very limited permissions