This documents what we consider the contract in Nova, and what kinds
of things trigger needing a new microversion. It also includes a flow
chart for folks that are more visually inclined.
Change-Id: I6dbadbf7cb23e27b96a0ae191419c8adf6ffe006
Make the API microversion history more accessible by adding it to nova's
doc landing page.
Making sure it is easy to discover what the difference between each
microversion is fundamental piece of the microversion puzzle, so lets
not require end users to have to look through git.
rename api_microversions.rst to api_microversion_dev.rst to clarify that
it is about development and versus history.
Change-Id: I270944bf9739b113a43b932948fdbf83e449603b
Sean Dague