Improve ActionException's for the Rest Dispatcher#735

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BenDol wants to merge 5 commits intoArcBees:masterfrom

BenDol:bd_exhandler

Commits on Sep 19, 2015

Improve ActionException's for the Rest Dispatcher, providing more details.
BenDol
committed

Commits on Sep 20, 2015

Also provide the response text (content) in response exception.
BenDol
committed

Commits on Oct 6, 2015

Commits on Nov 3, 2015

Move the try-catch back.
BenDol
committed