Reconnect feature is missing when websocket connection is closed.

[nujabes403]

Expected behavior
After websocket connection is closed, it should try reconnecting.

Actual behavior
After websocket connection is closed, it doesn't do anything except notifying "connection is closed".

Steps to reproduce the behavior
Try offline mode on chrome developer tool.

Versions
npm 5.6.0
node 8.11.3
web3js 1.0.0.beta-35
OS X high sierra

[nujabes403]

fix on #1851

[levino]

The PR does not solve this issue. Also I think this is a non-issue. See PR review. I vote for closing this issue as 'wontfix'.

[ArsenKulikov]

@levino @nujabes403
so, is there any solution of this problem?

[nivida]

I'm closing this PR because of the PR #1966