Updates developer install doc to use trove cli

Closes-Bug: #1260284
Change-Id: I293675592c2385bfab8ba73333ac515e68184d43
Corrects typo in instance models and service

The get_default_configuration_template() function in Instance was
misspelled as 'configration'. The function is also called from the
InstanceController class.

Closes-Bug: #1331135
Change-Id: I95416b0c5d49a46d19edd548c36ec619f580a8e0
Logging audit for trove/backup module

Adjust log messages to conform to logging standards.

Change-Id: Id11f7fec952a7f9d4af3c4b40d3283d8871026d4
Partial-Bug: #1324206
Add timestamps and instance count to config groups

This commit adds created and updated timestamps to the configuration
groups list and details calls. It also adds instance_count to the
configuration details call. Timestamps on configuration groups can
serve as a secondary indicator for making config edits, as well as a
potential time marker for correlating when detrimental config changes
were made. It will also help to see how many instances use a
particular config and users will be able to see up front how many
instances the config changes will affect.

Note that instance_count is generated on the fly and not stored in the
config db, hence the getattr() usage.

Change-Id: I0138a28e9fb4c0c045a1a26df3f8a282d80a7274
Implements: blueprint minor-config-edits
Docimpact: change to configuration payloads
Imported Translations from Transifex

Change-Id: I8e2f54974ca93b20e740fd4bb347427d8636a0db
Merge "Logging audit for trove/backup module"
Imported Translations from Transifex

Change-Id: I9e1509e77610cf93865d1bcfc6e63be0cc21af7f
Merge "Corrects typo in instance models and service"
Merge "Updates developer install doc to use trove cli"
Merge "Add timestamps and instance count to config groups"
Update backup state when guest error occures

Reason:
  - When guest error appears at 'create_backup'
    stage, backup still remain in NEW state.

Changes:
  - updating status when guest error appears;
  - updating backup model with a new method;
  - adding test;

Change-Id: I05f5caea4380edbe0e8bebc618ecfb52afe45872
Closes-Bug: #1333659
Mark all running backups as FAILED when instance was deleted

Reasons:
 - users are able to delete instance while it's in BACKUP state
   and all running backups are hanging in NEW state
   and cannot be deleted;

Changes:
 - when `instance-delete` action called, all running backup
   are being marked as FAILED;
 - int-tests proposed.

Change-Id: I53d13eaa81d368864c0a278c557c7f11a509e3ea
Closes-Bug: #1220989