Fixed bug in 1.6.0 webext upgrade process where old log entries were …

…being migrated.

Fixed small styling issue with header.

Moved firefox-only manifest settings to firefox webpack config.

New translations (xbrowsersync#393)

* New translations en.json (Japanese)

* New translations en.json (Galician)

* New translations en.json (Chinese Simplified)

* New translations en.json (Swedish)

* New translations en.json (Russian)

* New translations en.json (Polish)

* New translations en.json (Dutch)

* New translations en.json (Italian)

* New translations en.json (Finnish)

* New translations en.json (German)

* New translations en.json (Arabic)

* New translations en.json (Spanish)

* New translations en.json (Indonesian)

* New translations en.json (Portuguese, Brazilian)

* New translations en.json (French)

Increased default request timeout to 12 secs to catch server errors b…

…efore request times out.

Added short timeout to sync exists check on page load to prevent long delay in pages showing.

Fixed cordova build dependency issues.

Updated android version code.

Updated login panel, invalid cred error now focuses on password field.

Added skip button to help panel.
Updated dependencies.

Updated help text.

Fixed: (iOS) Updated checkConnection function to use widely supported…

… window.navigator.onLine.

Updated: Cordova plugin configuration.
Updated: README post-install iOS configuration.

Updated Travis CI build file.