Fix :bug: in eslint. Used shrinkwrap to pin to babylon@6.8.0
Fix :bug: in eslint. Used shrinkwrap to pin to babylon@6.8.0

See discussion at https://github.com/babel/babel-eslint/issues/321
We'll need to un-shrinkwrap in the future once the bug is fixed

Signed-off-by: Michelle Tilley <19f7a7eb6786def4c39d6d86c40af5dbc6589663@github.com>

atom/github,atom/github,atom/github