FakeClient: fix the arguments of a string format.

Fix the number of arguments in the string format in
FakeClient.assert_called_anytime().

Change-Id: I9d415d6d216a6e301254ba21b63109182d71e8bd
Begin adding v3 api support

Create the v3 directory and populate it with some of the basic
files from v2 that will be needed.  These files are straight
copies so that v3-specific changes will be easier to see in
subsequent changes.

Extensions will be added individually in future changes.

bp v3-api

Change-Id: I9538c70ccc6fb001ce2fd43ccfd41870f247c67e
Enable v3 api code

Add mappings to enable v3 code

bp v3-api

Change-Id: I035e5b9d65c06ce5691573832bb9b6c4c705b121
Remove old references

The v3 code references v1_1 code because it's a straight-across
copy.  Remove those in preparation for adding the actual v3
versions.

bp v3-api

Change-Id: I359c6c5fc70dd91fa418802cc8048e186f5d09a4
Clean up inaccurate docstrings of server list() method

Clean up the inaccurate docstrings of server list() method and
refactor them to standerd format.

Change-Id: I4c17aba7ce5eb430ddd10305135e11e3ce5dc446
Merge "Clean up inaccurate docstrings of server list() method"
Merge "FakeClient: fix the arguments of a string format."
Merge "Begin adding v3 api support"
Merge "Enable v3 api code"
Merge "Remove old references"