• Fixed session handling, now rejects out-of-order or duplicate channel requests.
• Fixed connection shutdown, timeout handling and subprocess waiting edge cases.
• Fixed inherited file-descriptor leak before fork.
• Fixed file descriptor leak in authorized_keys processing.
• Fixed log buffer purging and a potential out-of-bounds read in buf_putsharedsecret_.
• Updated makefilegen.sh to use gcc -MM -isystem /usr/local/include
• Moved LICENCE.md -> LICENSE.md