Fix for timing print in renders.

The time it was printing was excluding the time spent on color and file saving.
Now it includes this too, plus it prints the time spent on color/files.

Makes quite a difference when you do sequencer conversions or grading in 
terminals - time that was printed was very misleading.

For readablity of logs, also added an extra empty line after this print.



git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@55622 954f8c5b-7b00-dc11-b283-0030488c597c