fill out http error code handling

[dwburke]

i.e. 401 is unauthorized... atm it just says there was an error...

polly:~/repos/liquidweb-cli(master)$ ./_exe/liquidweb-cli cloud server status
A fatal error has occurred:

Bad HTTP response code [401] from [https://api.liquidweb.com/bleed/storm/server/list]

[sgsullivan]

this stems from another package currently

https://github.com/liquidweb/go-lwApi/blob/master/apiClient.go#L258