[ANN] Release 9.0.0 DP-8

[hh]

> Panos M. wrote:
> Script Editor: Support for auto completion of square bracket `[`,
> parenthesis `(` or double quote `"` is now added.

After writing a long script I really like this feature and miss it
already in LC 8.1.6.

I wonder what's the reason to leave out braces "{}" (may be needed for
connecting to LCB) and single quotes (good for writing an already quoted
javascript string)?