Bump sinon from 2.4.1 to 4.1.3

Bump cerdic/css-tidy from 1.5.5 to 1.5.6

Version bump; update changelog

Bumps [cerdic/css-tidy](https://github.com/Cerdic/CSSTidy) from 1.5.5 to 1.5.6.
- [Commits](https://github.com/Cerdic/CSSTidy/compare/1.5.5...1.5.6)

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Fix draft message active state in UI

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Bumps [sinon](https://github.com/sinonjs/sinon) from 2.4.1 to 4.1.3.
- [Changelog](https://github.com/sinonjs/sinon/blob/master/History.md)
- [Commits](https://github.com/sinonjs/sinon/compare/v2.4.1...v4.1.3)

Bump js-storage from 1.0.1 to 1.0.4

Bump webpack from 3.8.1 to 3.10.0

Bump karma-jasmine from 1.1.0 to 1.1.1

Fix undefined indices

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Bumps [js-storage](https://github.com/julien-maurel/js-storage) from 1.0.1 to 1.0.4.
- [Release notes](https://github.com/julien-maurel/js-storage/releases)
- [Changelog](https://github.com/julien-maurel/js-storage/blob/master/CHANGELOG.txt)
- [Commits](https://github.com/julien-maurel/js-storage/compare/1.0.1...1.0.4)

Bumps [karma-jasmine](https://github.com/karma-runner/karma-jasmine) from 1.1.0 to 1.1.1.
- [Changelog](https://github.com/karma-runner/karma-jasmine/blob/master/CHANGELOG.md)
- [Commits](https://github.com/karma-runner/karma-jasmine/compare/v1.1.0...v1.1.1)

Bumps [webpack](https://github.com/webpack/webpack) from 3.8.1 to 3.10.0.
- [Release notes](https://github.com/webpack/webpack/releases?after=v4.0.0-alpha.0)
- [Commits](https://github.com/webpack/webpack/compare/v3.8.1...v3.10.0)

Test on php7.1 on Travis

Add opt-out setting for Gravatar integration

Fix buggy icon scraper by replacing it

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Use ::class instead of string

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Update NPM scripts and package authors

Remove unused .lgtm config file

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>