HADOOP-18428. Parameterize platform toolset version (#4815)
HADOOP-18428. Parameterize platform toolset version (#4815)

* This PR adds an option
  use.platformToolsetVersion that
  makes the build systems to use
  this platform toolset version.
* This also makes sure that
  win-vs-upgrade.cmd does not get
  executed when the
  use.platformToolsetVersion
  option is specified.
wwjiang007/hadoop,wwjiang007/hadoop,mapr/hadoop-common,wwjiang007/hadoop,apache/hadoop,apache/hadoop,mapr/hadoop-common,apache/hadoop,apache/hadoop,wwjiang007/hadoop,mapr/hadoop-common,apache/hadoop,wwjiang007/hadoop,mapr/hadoop-common,apache/hadoop,mapr/hadoop-common,mapr/hadoop-common,mapr/hadoop-common,apache/hadoop,wwjiang007/hadoop,wwjiang007/hadoop