2.12.2

This patch release in the 2.12 series fixes the following issues:

• RUBY-2210 GridFS does not write data correctly when given String in UTF-8 encoding
• RUBY-2242 zlib compression broken in driver 2.12.1
• RUBY-2272 Exceptions raised during address resolution are not mapped to Mongo::Error
• RUBY-2295 Collation option in view not included in count_documents