Introduce more "precise" Time fixures - Precise and Precise.Local.

Both Fixtures add more granularity to time fixture jumps, and use full
formatted HH:MM(:SS) for more values.

Granularity added because the jump from, say, 15 minutes to 1 minute caused a
factor 15 increase in the x-axis points, which wasn't sustainable given the new
time format increase from 1-2 characters to 5 characters. Adding a 5 minute and
5 second step prevents jumps of more than factor 7 for times under a week.

Also added a formatter for HH:MM:SS, based on the existing formatDate function.

Changes reflected in both local and UTC time fixtures
Include the function rename :$
Name the function the right name, formatTime*Seconds*
Merge pull request #2 from glasnt/Time.Precise

Time.precise