Ansible-modules-hashivault

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- Fix up tune mount docs. [Terry Howe]
- Add mount tune module. [Marc Sensenich]

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- Use no_log on create user functional test. [Terry Howe]
- Fix hvac 0.3.0 change. [Terry Howe]
- Get rid of warnings for tests. [Terry Howe]
- See if travis deals with ipc locker better. [Terry Howe]

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- Add the ability to define a mount point for Auth backends. [Marc
Sensenich]

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- Fix typos in module_utils/hashivault.py. [Nathan Randall]
- Add documentation for TLS auth support. [Nathan Randall]
- Add support for TLS connections via hvac client. [Nathan Randall]

Adds support for using strong, (potentially) mutually-authenticated
TLS connections to Hashicorp Vault API.

Adds parameters to allow user to specify paths for client cert and
client key in order to support TLS mutual authentication with Vault
HTTP API, where the hvac client includes Python 'requests' and passes
the client cert and client key as a tuple argument to the 'cert' param
supplied to a requests.Session object. Depending on what params/values
are supplied by user, the value for 'verify' (as passed to the
requests.Session object) will be either True, False, or (preferrably)
the path to a CA cert or directory of CA certs to use for TLS auth
validation.

Updates argument_spec with new params for TLS client authentication :

- ca_cert
- ca_path
- client_cert
- client_key

Updates documentation with info about ^^new params^^ and their defaults.

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- Removed empty set fact in test. [Jaime Soriano Pastor]
- Don't try to remove a policy that doesn't exist. [Jaime Soriano
Pastor]
- Don't enable auth backend if it's already enabled. [Jaime Soriano
Pastor]
- Don't set policy if current policy is the same. [Jaime Soriano Pastor]
- Don't try to enable secret if it's already enabled. [Jaime Soriano
Pastor]
- Add lookup token parameter. [Terry Howe]
- Add test audit back in. [Terry Howe]

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- Add better delete verification. [Terry Howe]
- Remove deprecated call from update. [Terry Howe]
- Add delete secret capability. [David de Sousa]