Features and bug fixes

• Fix transport errors
• Increase reliability for trampoline payments

What's Changed

• fix clippy by @JssDWt in #1134
• detect and act on network change by @JssDWt in #1133
• configure grpc connection for breez server by @roeierez in #1132
• retry on any transport error with a source by @JssDWt in #1135

Full Changelog: 0.6.4...0.6.5