Fix for issue #4562
Revert "Revert "Workaround for the Tern crash.""

This reverts commit 0ae195f6ef3fb0c446802800af94d98c470d5015.
temporarily switch to my tern
turn off optimization in acorn (but not acorn_loose right now)
fix jshint errors on travis by pegging jshint to 2.1.4
Merge pull request #4595 from adobe/dangoor/v8-crash-redux

v8 crash (acorn parsing) workaround
Merge pull request #4599 from adobe/jasonsanjose/grunt-jshint-fix

fix jshint errors on travis by pegging jshint to 2.1.4
Merge pull request #4569 from lkcampbell/fix_issue_4562

Fix for issue #4562
Update CodeMirror to latest SHA
Set sprint 29 version
Merge pull request #4610 from adobe/nj/set-sprint-29

Set sprint 29 version