Refactor Orchestra\Extension\Publisher\FTP

Signed-off-by: crynobone <crynobone@gmail.com>
Add Orchestra\Testable\FTP

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Fix test case

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Another fix

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just some assertion

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Some other assertion

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Convert assertion to check is_null instead of empty

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Fixed invalid config key

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Merge branch 'develop'
Update README

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Merge branch 'master' into develop
whitespace

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Remove IoC orchestra.ftp

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Fixed test case

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Remove Orchestra\Testable\FTP

Signed-off-by: crynobone <crynobone@gmail.com>