0.16.0

Merged branches

• Merge pull request #346 from perftools/routes-params
• Merge pull request #345 from perftools/saver-return-id
• Merge pull request #347 from perftools/php-cs-fixer-config
• Merge pull request #350 from perftools/alcaeus/mongo-php-adapter-1.1.12
• Merge pull request #348 from perftools/import-id
• Merge pull request #351 from perftools/direction
• Merge pull request #352 from perftools/mongo-dot-encode-in-keys
• Merge pull request #353 from perftools/package-external
• Merge pull request #355 from perftools/pdo-init-schema
• Merge pull request #354 from perftools/pdo-default-direction