Fix obsolete client calls for contentful.js 3.x#148

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Pete-St wants to merge 2 commits intocarrot:masterfrom

littlegreensoftware:master

Commits on Jul 20, 2016

Updates client calls to .getEntries() and .getContentType instead of .entries() and .contentType(), both of which do not seem to have been supported in Contentful.js since 3.x/April 2016.
Pete-St
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Commits on Aug 1, 2016

getEntries() is no longer an array of entries, but rather an object with an items member that is an array of entries.
Pete-St
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