[SD-846] AAPIngestService did not move files from the directory after the file is processed.
fixed item autosave/lock

- changed the backend for model objects to EveBackend
- changed the verification for existing item in autosave
- removed custom data layer (not needed anymore)
Merge remote-tracking branch 'mugur/master'
test(autosave): make sure something gets stored

while server responds with 201 db is empty

SD-659
[SD-846] AAPIngestService did not move files from the directory after the file is processed.
 Refactored the AAPIngestService, AFPIngestService
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'

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feat(account confirmation email) - send email on new account creation
- improve reset password to include the link of the client with token
embedded
disable behave tests with AD until we finish the feature(support for post)
feat(account created email) - address review comments
[SD-852] Add additional preferences to user
[SD-852] Add additional preferences to user
[SD-850] Session preferences
Merge pull request #306 from amagdas/user-email

feat(new account confirmation e-mail) - send a confirmation email on new account created
Merge remote-tracking branch 'yauhen/master'
user status - split in two properties: is_active and needs_activation
Merge pull request #309 from amagdas/user-status

user status - split in two properties: is_active and needs_activation
allow login of disabled users - will be REVERTED
Merge pull request #311 from amagdas/fix-admin

allow login of disabled users - will be REVERTED
Revert "allow login of disabled users - will be REVERTED"

This reverts commit 0b215fe02d674fd7635d4b230cd4efffda514c29.