Updated docs to explain there are no log files

Used Caridy's explanation from https://github.com/yahoo/mojito/issues/1025#issuecomment-15270635 to call out that there are no log files.
Merge pull request #1045 from lexander/patch-1

Updated docs to explain there are no log files
Rewriting a paragraph given in a PR for noting that Node.js handles what happens to log messages after receiving them from Mojito.