Vim plugin that performs a "centralized" backup of files as they are edited.
As files are edited, the plugin automatically makes a backup copy of the file in the directory specified by the g:backup_directory variable.
On Windows, the default backup directory is %USERPROFILE%/.backup. On other operating systems, $HOME/.backup.
When the backup is created, it is given a unique file extension using an autoicrementing number. For example, ";1", ";2", ";3", etc. The backup is autoincremented up to the value set in the g:backup_purge variable. The default is 10. Once the number of backs reaches the limit, the oldest backup is automatically deleted.