Sort out some migrations and some Ember fixes
saving state commit
added helper methods to load taskmember and taksfile
added skill model helper
updated helper functions, updated references to dynamic model
added abstract organization auxillary models
removed members field
added get_model helper funcs for organization
updated admin, views and serializer for abstract organization models
removed migrations for organizations
updated new test model references and the test settings file
uncommented the task notification code, updated TaskMember references to dynamic model
test and factory fixes for organizations
test fixes for Skills and Tasks
serializer reference fixes
more test fixes
fix for meta data in project detail api
task tests and serializer updates and fixes
updated code for sending mail for realized tasks
removed commented mail code