Changes in version 4.83:

• Fix bug that sometimes biber is incorrectly run after a *latex run results in an error, with biber then giving an error.
• Fix problem that if -gg is used with multiple files specified on command line, then generated files are deleted for all by the last file compiled. (So that -gg wasn't working as intended in this case.)
• Restrict warning diagnostics about ^^ constructs in aux file to those involving non-trivial Unicode characters, as against things like ^^M.