Bug 974261 - Volume buttons stucks, need clearTimeout()
Bug 952611 - Disable intermittent tests
Merge pull request #16469 from KevinGrandon/bug_952611_disable_failing_tests

Bug 952611 - Disable intermittent tests
Bug 958340 - Download node_modules from github
Merge pull request #15319 from KevinGrandon/bug_958340_node_modules_prototype

Bug 958340 - Download node_modules from github
Merge pull request #16436 from timdream/system2-hardwarebuttons-fix

Bug 974261 - Volume buttons stucks, need clearTimeout() +shepherd
Resolved Bug 974264 - Viewport width/height were reversed and using CSS pixels causing an incorrect preview size selection.
Added threshold for optimal preview size scale.