Upgrade to Terraform 0.11.7

[gozer]

0.11.7 (April 10, 2018)

BUG FIXES:

• core: Fix handling of interpolated counts when applying a destroy plan (#17824)

PROVIDER SDK CHANGES (not user-facing):

• helper/schema: Invoking ForceNew on a key being removed from config during
  diff customization now correctly exposes that key as being removed in the
  updated diff. This prevents diff mismatches under certain circumstances.
  (#17811)
• helper/schema: Invoking ForceNew during diff customization on its own no
  longer writes any new data to the diff. This prevents writing of new nil to
  zero value diffs for sub-fields of complex lists and sets where a diff did not
  exist before. (#17811)

0.11.6 (April 5, 2018)

BUG FIXES:

• cli: Don't allow -target without arguments (#16360)
• cli: Fix strange formatting of list and map values in the terraform console command (#17714)
• core: Don't evaluate unused outputs during a full destroy operation (#17768)
• core: Fix local and output evaluation when they reference a resource being scaled down to 0 (#17765)
• connection/ssh: Retry on authentication failures when the remote service is available before it is completely configured (#17744)
• connection/winrm: Get execution errors from winrm commands (#17788)
• connection/winrm: Support NTLM authentication (#17748)
• provisioner/chef: Fix regression causing connection to be prematurely closed (#17609)
• provisioner/habitat: Set channel and builder URL during install, and enable service before start (#17403) (#17781)

PROVIDER SDK CHANGES (not user-facing):

• helper/schema: Attribute value is no longer included in error message when ConflictsWith keys are used together. (#17738)