Server Registry cleanup + assume myPlex Fall Back servers are owned

 * If someone use to use myPlex for their server and stopped using myPlex
   (stopped publishing). The server would fall back but be considered "shared"
   since their is still an accessToken attached to the machineID. The last
   resort/fallback will consider the fallback server owned instead of shared.
 * Clearning the Plex Media Servers did not clear the access tokens. This
   would also cause issue stated above. We now clear the token per server if
   removed one by one or we clear them all via regDeleteSection(section) [new]