Fix animation on pie charts

Animation on pie charts in Project > Overview and Admin > Hypervisros
does not start at 0 degree which, depending on the percentage used
for a resource, could cause the pie chart animate counter-clockwise.
This patch fixes the issue by setting the start angle to 0 degree.

The patch also fixes the issue with the last pie chart where it does
not animate.

Closes-Bug: #1283306
Change-Id: Ibc7f676f522a7e3ea69f87f36898249ecd0fe326
Merge "Fix animation on pie charts"