Issue Summary

When trying to Create a Snippet using the endpoint

POST /2.0/snippets

The request fails if the user account used for authentication does not have a personal workspace.

Steps to Reproduce

1. Call the API endpoint authenticating with a user that has no personal workspace :

curl -X POST -u "user_with_no_personal_wkspace:app_password" https://api.bitbucket.org/2.0/snippets -F title="My snippet"

Expected Results

Inform the user that a workspace should be specified in the URL

Actual Results

The request fails with an HTTP 500 error.

Workaround

Use the workspace-specific endpoint : 

POST /2.0/snippets/