Alignak-backend-client

Improve logs levels and small fixes:
- 36: default realm on creation

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Published on PyPi

Some updates for more tests and linked objects in the alignak-backend-cli script

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Published on PyPi

Updates for hosts/services escalations and recent backend modifications
Improve tests

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Release with the same backend version number

Improve documentation and unit tests code coverage
Fix minor issues
Allow to create/update multiple elements at once

Version published on PyPi to improve tha `alignak-backend-cli` script features:
- add with multiple templates
- delete all services of an host
- ...

`alignak-backend-cli -h` is your best friend ;)