Performance enhancements#81

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ronaldbarendse wants to merge 3 commits intorasmusjp:masterfrom

ronaldbarendse:performance-enhancements

Commits on Jul 2, 2018

Only initialize UmbracoHelper once
Ronald Barendse
committed
Only convert source to string once and use built-in DetectIsJson method
Ronald Barendse
committed
Use Lazy<UmbracoHelper> so it is only ever created once when needed
Ronald Barendse
committed