OR block.
Merge pull request #21 from ignaciouy/orBlock

OR block.
fixed while; turned off debug messages for the moment
Merge branch 'master' of github.com:walterbender/turtleblocksjs
Added eval block
Merge pull request #23 from rafaelcor/master

Added eval block
Modified advancedblocks.js
Merge pull request #24 from rafaelcor/master

Modified advancedblocks.js
Until Block
Added speak block
Merge pull request #26 from DakshShah/master

Until Block
Merge pull request #27 from rafaelcor/master

Added speak block
Trying to make speak block compatible with chrome
Merge pull request #28 from rafaelcor/master

Trying to make speak block compatible with chrome
use window scrollTo explicitly
move move code to stage event