2.1.6

[lgtm-com[bot]]

This pull request introduces 68 alerts when merging 60463c158785d082e589e2f818eb444bfc9d7188 into b5878cb81b6f541487236a88bcd3961753fca1e1 - view on LGTM.com

new alerts:

• 55 for Unused variable, import, function or class
• 5 for Useless assignment to local variable
• 2 for Superfluous trailing arguments
• 2 for DOM text reinterpreted as HTML
• 2 for Unneeded defensive code
• 1 for Useless conditional
• 1 for Comparison between inconvertible types