Revert "Add working grunt task to create dist/ with grunt dist.  The default grunt task fails because unit tests do not pass, and grunt dist fails because it is expecting grunt concat to be run first."

This reverts commit 00e14bd69358012f1f1bb64634fc746796b856df.

This change is being reverted because dist/ shouldn't be generated if tests don't pass
Revert "Add note to README about how to create dist/ with grunt dist"

This reverts commit 06fded71d84c96b044688161ca6ed0dd12679d37.

grunt dist should not be used because it bypasses unit test verification.
The dist process is already described in the section titled Release Checklist.