Still trying to get masking to work!
Add level as attribute of current_data

Not having level already added to current_data seemed to be breaking
things in 1d.  Line 421 caused this:
```
current_data.level = getattr(patch,'level',1)
```
Merge remote-tracking branch 'donna/googleearth' into googleearth

Conflicts:
	src/python/visclaw/frametools.py
	src/python/visclaw/geoplot.py
Merge pull request #105 from mandli/fix-current-data-level-bug

Add level as attribute of current_data
Commit changes to frametools.py so I can update submodules.

Merge remote-tracking branch 'origin/master' into googleearth

Conflicts:
	src/python/visclaw/frametools.py