Release pkg 1.8.0

New features:

• new vital flag that prevent from removing a package with pkg delete when not specifying -f
• upgrade process now has atomicity per packages meaning now we can safely check the return of the pre* scripts
• handle ctrl-c during upgrade/install/update
• solver improvements
• pkg clean now runs in a capsicum sandbox on supported plateforms

Changes:

• pkg delete now fails if one tries to delete it (the pkg package) without -f. Before it was just warning and skipping it
• pkg install --from-root has been renamed pkg install --recursive to avoir confusion

Fixes:

• correctly handle hardlinked setuid files
• better handling of setuid
• fix elf analysis when some bad libraries have SONAME specified by empty
• fix elf analysis when a binary provides elf_notes but not the expected ones and are still valid freebsd binaries (this fixes the case when libgdk_pixbuf was not found as a provided lib on i386)
• NAMESERVER option is now working again and inputs are better checked
• lots of bug fixes: potential leaks mostly