v0.9.8.26-alpha2
(GH-519) Issue warning if process doesn't have admin token

Because the first thing a non-admin may see after install is a bunch of red
text b/c they don't have access to write to the log folder in ProgramData,
issue a warning ahead of time to warn the user so they can take action to
prevent the issue instead of thinking things are broken.
(doc) update changelog/nuspec

All items for 0.9.8.26 addressed
v0.9.8.26
Merge branch 'stable'

* stable:
  v0.9.8.26
  (doc) update changelog/nuspec
  (GH-519) Issue warning if process doesn't have admin token
  v0.9.8.26-alpha2