* tighten up potential xvfb display problems
- improve the warning message on possible display problems
- reuse existing helper functions for platform detection
- instead of relying on timing mechanisms, if a possible display
problem is detected on linux - capture all of the stderr silently and
if the broken gtk message is detected, retry running
* consolidated and simplified smoke testing, xvfb error logging and messaging
- added —dev support to cypress verify cli command
* fix lots of tests, restore one error message
* fixed remaining CLI tests
* console.log pong only in electron mode
* remove dead code
* cli: debug explanation for XVFB
* linting
* add chai-as-promised to CLI dev
* show Linux specific error solution if cannot verify
* add todo
* chore: consolidate github issue url logic
* linting
* add npm script lint-changed to quickly eslint fix changes JS files
* retry verify with our XVFB
* update errors and tests
* update CLI tests
* add test for display error message
* fix unit test
* add successful test with retry
* finish verify retry test
* warn users if hit display problem on first verify
* try to detect display problem when running electron and retry with our xvfb
* add warning message to spawn when attempting xvfb re-run
* add test for display retry behavior on spawn
* more comments for clarity
* fix typo
* update cli_spec
* linting
* update named snapshot to have 1 to match snap-shot-it v5
* update errors spec
* linting
* update snapshot use in download_spec
* update install_spec snapshot
* linting
* update use of snapshot in unzip_spec
* update snapshot use in verify_spec
* enable all CLI specs
* no need to skip snapshot sorting
* upgrade snap-shot-it to v6 in root
* update snap-shot-it to v6 in packages/server
* need to add build script to transpile
* update cypress_spec snapshot use with names
* wip [skip ci] update
* wip [skip ci] update test
* [skip ci] fix env var
* bump sinon, create helper utility to always throw when a stub is called without being given stubbed behavior
* update failing specs
* fix some error messages
* update snapshot
* warning -> note, add snapshot tests
* change snapshot os.release, test env vars
Ben Kucera