removed all (most?) temporary object created, create only absolutely necessary one

animation now seem to not slow down (still not super fast)
Merge branch 'master' into issue_animations_slowing_down
new pngs I think having less copies of templates rsulted in slightly shifted templates
forgot to replace everywhere create_random_template
more corrected pngs
all tests pass now
had the labels gone, need to regenerate pngs pix
reverted most images
one little typo
MAJOR bug fix xvsy was flipped
new baselines
merged master in this to get better baselines
removed print statements
added a isofill with polar non gctp proj
Patch udunits2 configure file.

Removes the test for flex output file convention, as it is causing
problems on some macs and doesn't appear to be used by the library.
Make fix mac specific.

Forgot to uncomment these after testing....
Merge pull request #769 from UV-CDAT/733-flex

Patch udunits2 configure file.
Merge pull request #761 from UV-CDAT/issue_649_add_siofill_polar_proj

added a isofill with polar non gctp proj
fixed issue where I was using linesize instead of linewidth
Merge pull request #756 from UV-CDAT/issue_animations_slowing_down

Issue animations slowing down