0.7.1

Added Exception for UsageError.

0.7

Simplified the implementation a lot by removing the notion of timeout.

Breaking:

• Removed the Settings type
• Changed the signature of acquire

0.6

Moved away from "resource-pool" and fixed the handling of lost connections.

Breaking:

• Changed the suffix of UsageError constructors from Error to UsageError
• Added PoolIsReleasedUsageError