fixes #9025 - reflect on association for _name(s) methods

(cherry picked from commit 1cf860b74143da2e0f85b89913cac4cb84e20d4e)

Conflicts:
test/lib/has_many_common_test.rb

fixes #6540, #8335 - Add error to vmware when no datacenter, save password when testing connection

(cherry picked from commit ebac69ceab851c6124d9fc167b3d58f8c559e1ae)

fixes #8735 - enable config drive on Rackspace servers

(cherry picked from commit 9f19765b1c81d7a96381e40f46e5e4c2b00f413c)

fixes #8685 - include netmask in ENC output

(cherry picked from commit 66963aead88cfb8f8d5236af26dd12d3c153b6a8)

Fixes #8401: n+1 query on group parameters host edit

Hostgroup tries to eager load the group parameters but there's an error
in the code that renders the eager loading useless.

(cherry picked from commit 4cdc0455cc84711b0484fa519bb89a753ff88072)

fixes #5841 - use inner query when retrieving reports for subset of authorised hosts

(cherry picked from commit d50c79908831be65da0b0005e438c9e819db613a)

Fixes #5999 - vpc + pub ip -> attach pub ip

(cherry picked from commit 5ba6c393e0a9bde31ffda6e10a783d3af21c1143)

Fixes #8546 - Namespace interfaces and subnets to avoid a facts clash

(cherry picked from commit d3b7f426959b7195ceedac1b9e719bfd1563af02)

Fixes #8536 - can update and delete media with dot in name

(cherry picked from commit 12608e843a5e7895607e8e67bebfad66b1123e0c)

Fixes #7440 - correctly autocomplete current_user

(cherry picked from commit c9363b77e31215c46f706287db5ec2dfd29d42e5)