Added more thorough testing of Persistence code.
Fixed bug in WindowPlacementPreferences that caused the prefsSet state to be incorrectly reported after the preferences were cleared.
Added messages to all Persistence tests.
Added some more comments to the tests and removed tests that held no value.
Changed HTMLDiffReport to have a container around the matches for styling purposes.
Added styling to the Diff Report.
Merge remote-tracking branch 'origin/master'
Merge remote-tracking branch 'remotes/origin/GUI-and-Persistence'
Small style change to the Diff Report made after seeing the report with multiple results.
Merge pull request #17 from JeffBlodgett/Persistence

Persistence - Polishing Up