Apply CE UI changes to Winsparkle#3

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jaredburkeen wants to merge 6 commits intomasterfrom

winsparkle-2018

Commits on Mar 8, 2018

Apply UI changes
jaredburkeen
committed

Commits on Mar 9, 2018

Allow 5 minute minimum update interval check time
jaredburkeen
committed

Commits on Mar 15, 2018

Commits on Mar 21, 2018

UI updates
jaredburkeen
committed

Commits on Mar 22, 2018

PQA updates
jaredburkeen
committed