tree f0c4df2c74a8d636fc8e3fbe846cdc976a70fe37
parent a1f8713596d3586b04cc2960b3d3308b740d751e
author Ghanshyam <ghanshyam.mann@nectechnologies.in> 1452221467 +0900
committer Ghanshyam Mann <ghanshyam.mann@nectechnologies.in> 1453449643 +0000

Separate base microversion client and compute client

To support microversion in service clients, there are some
common functionality which can be shared among all projects
service client who support microversion.

This commit separates the common functionality:
- New base microversion client which can be used by any service
  client for microversion testing.

- Base compute client which will be specific to compute service
  clients.

Also adding the microversion header checking in base compute client only
as microversion implementation not yet standardize. So projects might have
different way of return microversion information in response.

Partially implements blueprint api-microversions-testing-support

Change-Id: Ic25ab63946264057f3a4365cd1ed13d9a35462db