fixed #805
temporary pause to fix another bug
added beg of test file
chaged default value, recognizes draw_white_bg
got it to also dump associated elts, need to make sure ordering is ok
Ok got it to dump associatedobj, updated test suite
Move baseline images to an external repository.

1) Baseline images are now stored in the github UV-CDAT/uvcdat-testdata
   repository.
2) A new build target, update-testdata, is added. This will clone the
   repository to a customizable location ([build_dir]/uvcdat-testdata by
   default). The location can be shared between multiple uvcdat clones.
   If the repository already exists, is on master, and is clean, it will
   be updated when this target is executed.
3) Updated testing scripts to use new baseline location.
Merge pull request #822 from UV-CDAT/testdata

Move baseline images to an external repository.
perfect works on my mac
Only fetch head from baseline repo by default.

Ref #822.
Merge pull request #823 from UV-CDAT/shallow-testdata

Only fetch head from baseline repo by default.
Merge pull request #818 from UV-CDAT/issue_817_white_bg

chaged default value, recognizes draw_white_bg
Merge pull request #821 from UV-CDAT/issue_816_tmpl_sv_textable

Issue 816 tmpl sv textable
Merge pull request #806 from UV-CDAT/issue_805_template_rescale_error

fixed #805
Fixes a typo when disabling a package
adding beg of test file
got it to work on my test case
Fixes Python patch step failing on OSX

Path to cmake command might include spaces.
Patches Python to remove global OSX packages

On Mac OS X only, if Python is built as a framework, site.py loads
packages from /Library/... into sys.path.

This disables it by patching site.py before installation.
Error checking for Python patch step
end of line issues in baselines vs ubuntu, hopefully these won't break test on other OS