Ignore scenario loading errors to enable other testing
Calculate coverage and submit to coveralls.io

https://coveralls.io/r/edx/xblock-sdk
Merge pull request #42 from stvstnfrd/coveralls

Calculate coverage and submit to coveralls.io
Load new acid updates
and other workbench fixes
PLAT-213, PLAT-214
Ignore thumbs pngs
Update tests and rqmts
Handle object oriented js blocks better
update requirements
Merge pull request #40 from edx/dhm/acid_aside

Dhm/acid aside
Make Thumbs an XBlockAside

[PLAT-215]