Set up a new elasticsearch index with lots of breaking changes :)

[cburgdorf]

We need to set up a new elasticsearch index with a couple of breaking changes:

• a new mapping that supports a non analyzed _ninya_location field
• ids which are made up from site name + user id
• a new property _ninya_site

What we should do:

1. create the index production_v2
2. create the correct mapping
3. set _ninya_io_synced to false for all entries of the users table (NOT: users_working)
4. stop the default elasticsearch sync
5. run the new elasticsearch sync (v0.2.0) against the users table (NOT: users_working)
6. wait until that's over (should take a couple of minutes)
7. set _ninya_io_synced to false for all entries of the users_working table (this time for real!)
8. run the new elasticsearch sync (v0.2.0) against the users_working table to also sync all the latest users.
9. make ninya.io request data against the production_v2 index
10. delete the production index.

[cburgdorf]

DONE!