added method generated hostname fo asset
added support for ISO-3166 (alpha-2, alpha-3)
Merge branch 'develop' into 314-generate-hostname
Merge branch 'develop' into 314-generate-hostname
Fix UnicodeEncodeError - download history transition file.
Fix ValueError - in user details views.
changed generate hostname
Merge branch 'develop' into 314-generate-hostname
added documentation
after review
Update transition.py
Merge pull request #338 from ar4s/314-generate-hostname

314 generate hostname
Merge pull request #336 from quamilek/hotfix/reports-develop

Fix errors with reports files - develop
added tests checking if fields are in forms (dc,bo,li,su)
rm assets field from support's add-form & code cleaning
rm duplicated tests & code cleaning
rm 'form' string from supports' urls
Merge branch 'develop' of https://github.com/allegro/ralph_assets into rm-assets-field-form-support
added _try_assigned_hostname & unittests; WIP
fixed tests & reverted unique prop. for hostname (to rethink it..)
added commas, commas, commas..