Stable Clonezilla live 2.6.4-10 Released

This release of Clonezilla live (2.6.4-10) includes major enhancements and bug fixes.
ENHANCEMENTS and CHANGES from 2.6.3-7

• The underlying GNU/Linux operating system was upgraded. This release is based on the Debian Sid repository (as of 2019/Oct/24).
• Linux kernel was updated to 5.3.7-1.
• Update Brazilian Portuguese translation. Thank to Rafael Fontenelle for updating that. Ref: https://gitlab.com/stevenshiau/drbl/merge_requests/13
• An option "-ps" or "--play-sound" was added in expert mode so that when Clonezilla job is done, a sound can be played. Thanks to David McCracken for suggesting this.
• Add an option -icol for ocs-live-feed-img which can be used to skip checking the running environment is Clonezilla live or not.
• Add a Singularity recipe sample file singularity-debian-ocs.def which can be used to create a Singularity image.

BUG FIXES

• Only mail the results of Clonezilla job to root as MTA is running.
• Update function parse_cmdline_option so that it can parse the boot parameter like ocs_repository from grub. Thanks to jeff.sadowski for reporting this issue. Ref: https://sourceforge.net/p/clonezilla/discussion/Help/thread/ebf65f9bdd/
• Machine-id on GNU/Linux should not be created in 2nd partition if it exists due to the flag is not reset. Thanks to czfan for reporting this issue. Ref: https://sourceforge.net/p/clonezilla/discussion/Clonezilla_live/thread/ccb439f3da/
• Fix recovery Clonezilla live iso/zip issue with ocs-iso and ocs-live-dev due to the recently modified syslinux x86 and x64 path. Thanks to Steeve Gagne for reporting this issue. Ref: https://sourceforge.net/p/clonezilla/bugs/331/