Add JWT setters#33

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typerandom wants to merge 6 commits intomasterfrom

add-jwt-setters

Commits on Oct 1, 2016

add typed error handling
typerandom
committed

Commits on Oct 3, 2016

refactor and fix formatting
typerandom
committed

Commits on Oct 5, 2016

Commits on Oct 7, 2016

readd ability to call constructor without new + add tests
typerandom
committed

Commits on Oct 10, 2016

add jwt header and body setter functions
typerandom
committed