In some timezones, (eg GMT+6) the modified timestamps for the
'TiddlerOne' and 'Tiddler Three' test tiddlers were actually on
the same day. This was causing the 'eachday' filter test to fail.
Similar to the fix in commit 8487221, this just adjusts the
timestamp to ensure the test passes in any timezone.
In certain timezones, 201304151312 UTC is not actually the same day
as 201304152219 any 201304151756. This was causing the test for the
'sameday' filter operator to fail. (I'm in GMT+10).
This is a quick-fix. I've just adjusted the timestamps to be close
together so they will be same day no matter what timezone you're in.