Do not complete on return (DEFEDIT-1214)

Complete on return feels too aggressive. Tab works better.

Try:

1. On a new line, type "this" and press return.
2. Expect to get "this" on a line on its own, but it completes.

Try:

1. Write "for i = 1,10 do" and press return.
2. Expecting return and no completion of "do".
2017-12-19 10:56:05 (mikael.saker)
better is probably to keep the current behavior and instead add a setting whether the completion popup should appear automatically or on ctrl+space.