handle websocket reconnect and save the endpoint url in the client

Merge pull request #12 from gitopia/release-v0.7

Use gitopia v6.0.0

Upgrade gitopia version to v6.0.0-rc.6

Upgrade gitopia version to v6.0.0-rc.5

Upgrade gitopia version to v6.0.0-rc.3

Upgrade gitopia version to v6.0.0-rc.2

Merge pull request #11 from gitopia-go/upgrade-gitopia-v5

upgrade gitopia version to v5.0.1

Merge pull request #10 from gitopia-go/fix-gas-adjustment

fix gas adjustment