Version 1.3.7

• Fix Feed validator URL (move to HTTPS as HTTP is not anymore supported)
• Remove travis-ci automatic test

Version 1.3.6

• update README to clarify usage with Ruby frameworks
• update dependencies to be ready for ruby 3.0

Version 1.3.5

• replace Net::HTTPServerException (deprecated) by Net::HTTPClientException (ruby 2.6 and above only)
• fix bad indentation of rescue in validators classes
• add test for ruby 2.6, update 2.5, 2.4, 2.3 tested version and remove 2.2 and 2.1 versions

version 1.3.4

• migrate css validator to https (instead of http)
• add test of ruby 2.5
• remove unused variable in nu validator code

version 1.3.2

• relax constraint on json gem to >=1.8 instead of ~>2.0
• add test of ruby 2.4.0 + drop test of ruby 2.0.0

version 1.3

• drop ruby 1.9 compatibility
• Move markup and nu validators to https
• Use POST for file validation (avoid crash for big files)
• Use POST with x-www-form-urlencoded instead of multipart/form-data for feed validation
• Mock test with VCR to prevent w3c abuse ban when replaying tests
• Add support for context and skippedstring to CSS messages
• Create gemspec
• Move README from rdoc format to markdown format
• Add capability to manage vendor extension as warning or error