electron v1.6.0 beta

Note: This is a beta release. This is the first release running on an
upgraded version of Chrome and may have some instability and/or regressions.
Please file new issues for any bugs you find in it.

This release is published to npm under the beta tag and can be installed via npm install electron@beta.

Upgrades

• Upgraded from Chrome 54.0.2840.101 to 56.0.2924.87. #8501
• Upgraded from v8 5.4.500.43 to 5.6.326.50. #8501
• Upgraded the NODE_MODULE_VERSION/process.versions.modules from 51 to 53. #8501