Logging from django.db.backends is VERY verbose, send to null

Fix logical error in confition
Fixes: #PRD-1620

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
Disable dashboard debug, it is too verbose

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
Wildcarded logrotation for all files with retention period (days)

- Just rotate all log files (up to 2 dir levels deep) ignoring its rotation policies,
  using universal way log records loss potential (local only) tho.
- Rotate only if 1M size or bigger
- Copy and truncate file, do not delete & recreate
- Ensure archive files older than retention period (based on time rotation policy) would be deleted
- Compression is enabled
- Put all rotated archive copies to folder deep enough (level 3) to exclude it from re-rotation
  (/var/log/archives/rotated/files)
- Add date prefix for rotated arhcived files
- Add missing sanity check for rotation templates

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
Use log_local to control local logging for openstack as well

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
Set WARN as default syslog level, log_local false, limitsize 50M globally

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
Merge branch 'fix_prd1620'
Merge branch 'imp_logs'