Support for Fly 2

[otariidae]

Changes:

• Upgrade to the new syntax
• Add try...catch and emit plugin_error
• Improve a test with real Fly

[otariidae]

oh... I forgot Destructuring assignment is not supported by Node v4 and v5.

By the way, Fly targets Node 6.x and some plugins no longer supports Node v5 or lower.

In my opinion, there are two ways:

• Support Node v4 and v5
  or
• Drop support for Node v5 or lower

Please tell me which to choose.

[frantic1048]

Thanks for your help!

According to discussion in wendux/fly#242 , I prefer targeting Node 6.x.

Another way, we can keep Node v4 and v5 until April as Fly's update. Which do you prefer?

[otariidae]

@frantic1048 I prefer targeting Node v6 or later, too. 👍

[lukeed]

We've reverted to Node 4 because of LTS. I made the mistake of dropping it too early. However, as the plugin author, you may decide what's best.

[frantic1048]

Sorry for the late, I forgot this issue for a time due to works in university. >_<
Thanks again for your work :)