ED-447: Created a s3 file upload package.
ED-449: Added schema for avatar url and stored uploaded image url.
ED-447: Fixed some bugs.
ED-297: Added allowedFileTypes field to upload schema.
ED-297: Modified the API for make progress tracking easier.
ED-933 update dependencies to use the new release of keen-settings
ED-687 package overhaul, because 0.9
ED-684: upload files with unique names
Merge pull request #208 from CulturalMe/ED-684-update-avatar-after-upload

ED-684: upload files with unique names
merge
Migrating to 0.9.3.1
Refactoring to allow other cloud storage services to be used.
Merge branch 'master' of github.com:CulturalMe/meteor-slingshot

Conflicts:
	.gitignore
Initial readme docs