Remove unused middleware action
Directly capture guest release info via ssh + cat
Merge branch 'refactor-release_detection'
Detect guest architecture for installer
Rename transfer/http to transfer/open_uri

You know, renaming things for funsies.
Handle open-uri failures gracefully
Extract POSIX based installation detection into subclass
Correct typo in detect_installer/posix
Concatenate string content when reading remote files
Normalize variants of i386 arch when detecting
Merge branch 'handle-openuri-error'
Update README.markdown for 0.3.0
Update CHANGELOG and version for 0.3.0
Merge branch 'release-0.3.0'
Fix typo in README
[transfer] Convert unhandled URI scheme to I18n error
[transfer] extend correct error class
Revert "Remove incomplete ConfigBuilder behavior"

This reverts commit d46d3b6657c2d2670fc58270133a3d51f07f3218.
Update ConfigBuilder models for current API
Inherit global config in pe_bootstrap builder