osync v1.2-RC2 "beyond"

Next final release should only add updated documentation and RPM spec file.

This new release candidate of next osync comes with the following improvements:

• Improved optional ssh filter for more security on remote connections
• Improved optional sudo privilege remote run
• Installer has new --remove option

And fixes:

• Optional mail body encoding option to work around mail being sent without UTF-8 header
• Fixed escaped UTF-8 log lines because of LC_ALL=C in script
• Minor tweaks and fixes