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rename "plan summary" => "plan index"
link to bible passage opens up parallel reading for Eng and Chinese
wrap user created reading plans in a #plan_list
ajaxify adding comment
Revert "ajaxify adding comment"

This reverts commit 5906d4e09862a9f94438d149eafabe7094f89144.
rely on model validations; better error message
add global.js for flash message fade in
different color for flash error messages