LBaaS member creation enhancement

This patch set allow user to chose a source for LBaaS member:
select active instances or just specify IP address.

Implements blueprint lbaas-members

Change-Id: I60a26c085bb0c88b55685d914a23ee3b0bfb7de4
Imported Translations from Transifex

Change-Id: I39d21317570f4c3b58aa9e303bdbf23116a962c5
Merge "LBaaS member creation enhancement"
Merge "Imported Translations from Transifex"