Merge pull request #2 from Asana/cofactor-20141107

Cofactor 20141107
Merge pull request #3 from Asana/cofactor-20141111

Cofactor 20141111
Merge pull request #4 from Asana/cofactor-20141112

Cofactor 20141112
Added missing Importer tests.
Merge pull request #5 from Asana/cofactor-20141114

Added missing Importer tests.
Merge commit '16278049f12edd958c5792b23ba1f4856482d801' into cofactor-20141117

Conflicts:
	test/asana_export_importer/Importer.js
Merge pull request #6 from Asana/cofactor-20141117

Cofactor 20141117
Merge pull request #7 from Asana/cofactor-20141118

Cofactor 20141118
Don't skip TaskDescriptionChangedStory, remove hardcoded org id, misc tests
Reorganize import functions
forEachParallel and tests
Add parallelism argument to forEachParallel and mapParallel
Major refactor of Importer to use forEachParallel etc, fixes numerous issues such as task ordering
Organize models into subdir, use hash of source file for db.
Cache the users in AsanaExport to massively improve performance.
Remove old code
Fix various bugs