Sahara config with absolute paths on Windows fails

Attempting to load below Sahara config on Windows fails, with an error that "_./c:\programmer.elf_" can't be found.

```
<?xml version="1.0" ?>
<sahara_config>
	<images>
		<image image_id="13" image_path="c:\programmer.elf" />
	</images>
</sahara_config>
```