Merge pull request #394 from code-dot-org/finished

Deliver finished.
Merge pull request #402 from code-dot-org/finished

Delivered to Finished
Merge pull request #404 from code-dot-org/finished

deploy to delivered
Merge branch 'finished' into delivered
Merge pull request #408 from code-dot-org/finished

Finish to Delievered
Merge pull request #414 from code-dot-org/finished

Finished to Delievered
First stab at edit start blocks using blockly (vs a select element)
Merge pull request #416 from code-dot-org/finished

deploy to delivered
Add support for ENV credentials to use BrowserStack
Merge pull request #417 from code-dot-org/env_browserstack_credential_support

Add support for ENV-based BrowserStack credentials
Put things in one place. The other option is really bad. Not fixing it isn't an option.
Merge pull request #418 from code-dot-org/dont-be-lazy

Put things in one place.
Automatically upgraded blockly-dist.
Merge pull request #419 from code-dot-org/finished

deploy to delivered
Use blockly to edit start/toolbox blocks.
Get rid of block stuff
Remove test for blocks.'
Fix tests (remove old fixtures). Add toolbox for editing blocks.
Add two links to teacher prize area, update donorschoose expiration for remaining codes to June 30
Comments and tests.