production db backup.
fixed typeahead on IE8 by using underscore map and filter functions.
using jquery trim function, instead of js trim, for IE8 compatibility
calling placeholder plugin on new measures page for IE8 compatibility.
improved rendering of project add measures page

change: only project measures area is rendered when adding or removing measures
add: new function uses jquery to update add button status
add: manual event onRender triggered when filtering or searching, so add button can be updated
scroll to bottom of project measures list when adding measures, deleting measure snapshots by id not index