each is broken on Linux

[boazsegev]

For some reason, each is broken on Linux, while working flawlessly on macOS.

Tests have yielded no apparent reason so far, though it might have something to do with closing connections (and might not).

The error received is "segfault" for address 0x00000....04

Attempting to reproduce with C code (no Ruby) did not yield any errors nor segmentation faults.

The issue is being researched, but is (of yet) unresolved.

[boazsegev]

Seems to have been an issue where a protocol lock was "unlocked" while on_open was running, allowing each to call on a Websocket object even before the initialization of it's core data was complete.

Resolved in version 0.2.5