phly/http 0.6.0

Updated component to psr/http-message 0.4.0. That release contains a number of backwards-incompatible changes.

Added

• Added IncomingRequestFactory::setHeaders() for simplifying setting
  (overwriting) many headers at once from an array.
• Updated MessageTrait::addHeader() to allow array values
• Modified IncomingRequest to s/PathParams/Attributes/g

Deprecated

• IncomingRequest now only allows arrays for either input or return values; Array-like objects are no longer accepted.
• Removed ability to pass objects to MessageTrait::addHeader()/setHeader()
• Removed setHeaders()/addHeaders() from MessageTrait
• Modified IncomingRequest to s/PathParams/Attributes/g

Removed

• Removed ability to pass objects to MessageTrait::addHeader()/setHeader()
• Removed setHeaders()/addHeaders() from MessageTrait
• Modified IncomingRequest to s/PathParams/Attributes/g

Fixed

• #11 Moved PhlyTest autoloader configuration to autoload-dev key, as it is needed for development purposes only.