batch-oggencode.rb: fix mis-spelt variable name
batch-oggencode.rb: fix target-file extension regression
batch-oggencode.rb: add --mp3 as a synonym for --lame
batch-oggencode.rb: add --to-flac option to convert wav to flac
batch-oggencode.rb: detect when input and output files are the same file
batch-oggencode.rb: bail out quickly if no files found to process
batch-oggencode.rb: add a --delete option, to delete the source file after successful processing
rsbackup.rb: pass --stats to rsync
batch-oggencode.rb: 1) detect lack of target directory. 2) print number of files that will be processed