Merge branch 'release/0.9.4' into develop
fix for 'installed undefined' error
Don't remove json/text errors handlers!
Added quality method to Medium to set the compression
removed extraneous manual cache disable
Added support for AND and OR taxonomy filtering.  Default to AND (was OR)
make comparison case insensitive
Fix for inline CSS and JS when pipelining enabled
Fix for data urls in CSS
fix for markdown links with fragments and query elements
added some specific clear options to 'clear-cache' CLI command
Moved environment to Uri object
Set output to public so it can be manipulated in the onOutputGenerated() event
PSR code tidy
added new onPageContentProcessed() event that is post-content processing but pre-caching
Updated Vendor libs to latest
Fix for incorrect template name when throwing missing error
Added helpful message when theme can not be found
PSR code fixes
Change paths() method to be more useful