Configuration keys start with an int break manifest import

[scrthq]

Following up on SCRT-HQ/PSProfile#28

It looks like PowerShell doesn't like dictionary keys that start with an int and are not wrapped in quotes, resulting in the parser breaking when attempting to import metadata containing keys like this. Sample to replicate:

@{1BadKey = 'Value'}

Digging into this and sending over a PR asap!