Disable "prefix" by default

2.5.0

Set default prefix config as false

Add setting to modify the prefix or suffix of the backup files

Merge pull request #36 from Abelarm/master

#30 Added feature for "Add setting to modify the prefix or suffix of the backup files"

Fixed sorting problem

Merge pull request #24 from thecotne/master

sort files before displaying

1.5.1

Create .no-sublime-package