Configurable network labels used for showing IPs in instance details

The ip shown in the instance detail was hard coded to be obtained from
a nova netwok label 'private' or 'usenet'. With this change, the labels
is configurable based on a regex pattern.

Fixes bug 1206303

Change-Id: I73d896e6b85bdebe342a777219b9b60d6954f8b6
Removing mycnf static files from contrib.

implements bp guestagent-mycnf-versioning

Change-Id: I4ad06d165b47be49841a83de2d1d229cd7561775
Moves extension files to routes

This allows extensions to be loaded properly without interfering with
directories in trove/extensions that are loaded as python modules.

Change-Id: Iad1bdc9b7548c46b0e5b8694693b4456ac548f14
Implements: Blueprint fix-extensions-imports
Fix bug with insecure instance on Prepare loss

    If prepare is lost or not received the instance will remain in
    BUILD status rather than move to ACTIVE

Change-Id: Ib04761b5734f41fa70d034978a858278574fceda
Fixes: bug 1207115
Fixing bug in Interrogator tests mocks.

Change-Id: I474c4469842bd5e68632d49a2b4711beeae06128
Merge "Fixing bug in Interrogator tests mocks."
Merge "Configurable network labels used for showing IPs in instance details"
Merge "Removing mycnf static files from contrib."
Merge "Moves extension files to routes"
Secure root password on restore from backup after root-enable

On the restore of an instance that has root enabled on it, we need
to ensure that we are correctly securing the root password so that
the password is not empty.

Fixes bug: 1211557

Change-Id: I6386b9e0573a39a6667504666556b918927abf76
heat - do work son

Change-Id: I64b524c589620fb81867bee1ea5dd69ea9017132