Small changes, minor updates

[bunop]

Is your feature request related to a problem? Please describe.
Here are described some ideas or improvement not related to a specific issue or a problem in particular

Additional context

• check validation.admin
  • check __str__ methods
  • check plurals
  • check columns displayed
• use bumpversion to manage versions?
• disable validation links while WAITING - not useful we can inspect errors while waitin and we can't update or fix in this state
• what to do when getting a specie not in DictSpecie table?
• TaskFailureMixin should be unique and used by all tasks - issue #58
• batch update doesn't update the last_changed colum in Name table
• add the update submission view
• country should't be added when importing data - issue #57
• pinning kumbu library and fix issues with flower - ussue #6
• send mail to admin when a task fail - issue #58
• use common.helpers.send_mail_to_admins when sending a mail to admin is needed - issue #58
• configure git LFS
• uploading csv file with cryoweb path should raise an exception or a more informative error
• take a look to https://medium.com/@ksarthak4ever/django-and-web-security-headers-d72a9e54155e - will have a dedicated issue
• solve the cookie problem with font-awesome and google-chrome - seems has been solved by font-awesome
• cryoweb data with GPS coordinates will fail validation since we don't have place as a text - should this be fixed with geographic referencing tool?
• biosample submission data tables can be deleted if the submission process went ok?
• add the contact to text for missing organizations (affiliation/organizations)
• filter validation by owner in admin - devel
• filter biosample objects as validation object in admin - devel
• use submission.id instead of str(submission) in task retrieval logs - devel
• the reset_submission management command should free also biosample.Submission table - no, should be done by hand since there can be opened USI submissions
• add views for organization objects as view for update organization information
• the retrieval task could be done in parallel - will have a dedicated issue
• remove text placeholder from dashboard
• warn user if they delete a submission with biosample names
• better error message when uploading a missing relationship during excel upload
• Add last species and translations to initializedb