change version to 4.7
change version to 4.7

Signed-off-by: Sebastien Goasguen <runseb@gmail.com>

This closes #34

pdion891/cloudstack-docs-admin,lmrv/cloudstack-docs-admin,lmrv/cloudstack-docs-admin,apache/cloudstack-docs-admin,apache/cloudstack-docs-admin,lmrv/cloudstack-docs-admin,pdion891/cloudstack-docs-admin,apache/cloudstack-docs-admin,pdion891/cloudstack-docs-admin