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Merge pull request #1471 from jeffreyjackson/patch-1

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RubyGems over TLS
Failing test for ElseAlignment bug
[Fix #1470] Handle elsif+else in ElseAlignment

Statements with if+elsif+else were not handled properly
before.
Merge pull request #1472 from jonas054/1470_else_alignment

Handle elsif+else in ElseAlignment
New cop Style/EmptyElse

Checks for empty `else`-clauses, i.e. clauses containing nothing but comments
and/or an explicit ending `nil`.