Per proxy additional header functionality#40

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lipovsky wants to merge 3 commits intojaswope:masterfrom

lipovsky:master

Commits on Jun 25, 2014

Add functionality to add additional headers to reverse proxy.
exceptionraiser
committed
Update README to show how to use add_header functionality.
exceptionraiser
committed

Commits on Jul 2, 2014

Changing loop on @headers to a single line.
lipovsky
committed