No longer calls getTime() when waterfall completes
Stashing waterfall refactor progress
Added parentKey to backfill()
Added yerf prefix to styles
Merged waterfall_refactor version 1 in
Made waterfall viewer prettier
Merge branch 'waterfall_refactor'
Broke test suite into two files
Added normTime and tests for getTime
Changed order of backfillRequest's arguments
start() will now start unwaterfalled childern
added normalizedBackfill()
Fixed firefox bugs
Fixed Safari bugs
Moved onError from Sample to publicYerf
Working in IE9 and IE10
Added rules to waterfall viewer
Bumped version to 0.0.4