Update doc/ref/states/highstate.rst

Avoid any ambiguity about dots in IDs.
fix typo
Merge pull request #3252 from gotcha/patch-2

Documentation : Avoid any ambiguity about dots in IDs.
are we there yet?
Merge pull request #3254 from seanchannel/develop

are we there yet?
bugfixes for virt stats module functions
Check for target device in XML definiton, stopped VMs does not have
targets.
Return int for cputime_percent
Merge pull request #3255 from torhve/develop

Develop
Add new returner carbon, to push metrics directly to carbon server
Merge pull request #3256 from torhve/develop

Add new returner carbon, to push metrics directly to carbon server