Fix fallbacks when translating key arrays

[daniel-rikowski]

This fixes a problem when translating multiple keys at once. The (temporary) :fallback flag was not removed from the options parameter after successfully translating the first key. That way it "leaked" into the next iteration, which effectively disabled the fallback mechanism for all following keys.

This should fix #104 and #293.

[daniel-rikowski]

This is the only real change: Putting the existing options.delete(:fallback) line in an ensure block. All other changes were caused by the new indentation level.

[airblade]

Is anything stopping this from being merged?

[dchopson]

+1 my team needs this too

[radar]

Thanks very much for taking the time to fix this @daniel-rikowski. I am sorry that we weren't able to get around to merging it sooner.

Due to the conflicts on this branch, I've had to manually apply the PR to a branch called pr-304. Once the tests are green for that branch, then I will be merging that branch into master.

Thanks again for your time.

[radar]

Brach is happy, and so am I :) This has now been merged to master. It'll go out in the 0.8.0 release (a beta of which should be out next month, with final release in the new year)