patch.level not currently set in 1d code
use level=1 as default in setting current_data.level
Merge pull request #104 from rjleveque/1d_level_not_set

patch.level not currently set in 1d code
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 pull request #105 from mandli/fix-current-data-level-bug

Add level as attribute of current_data