Additional usage of DateTime in Time utility
Move time concatenation up one line
Update toAtom() and test case to use DATE_ATOM constant, fix 'quarter' typo
Use created object to access ATOM constant
Update toAtom() test case to use DateTime instead of time()
Clean up toQuarter()
Fix Email testSendRenderWithHelpers() test
Merge pull request #2309 from bcrowe/hotfix-moreDateTime

3.0 - Additional usage of DateTime in Time utility