- Updates listExtensions() and getId() for optional params showVersions / withVersion
- Adds --help info for new option

Resolves: #12963

This reverts commit fc21ef35.

This reverts commit 9e4d4ece.

related to #10340

fixes #10179

* use electron 1.3.4

* ATOM_SHELL_INTERNAL_RUN_AS_NODE => ELECTRON_RUN_AS_NODE

* OSS input

* update electron.d.ts

* workaround for #8708

* bump oniguruma and chokidar with custom fsevents

* build with appveyor config from master

* oops, still use ELECTRON_RUN_AS_NODE

* use electron 1.3.5

* optional fsevents

* add cat.exe to workaround output issues

* use cat for tests

* remove some now obsolete ELECTRON_NO_ATTACH_CONSOLE

* also pipe output to cat for code.sh on windows

* unset ELECTRON_RUN_AS_NODE for appveyor

* fix tfs builds?

* fix build

* fix build?

* use cat only when running tests locally

fixes #11931