v0.2.5

• Bump versions
• Add -L arg: Comma separated list of remote TCP and UDP port forwarding to local port <local_port:remote_port>
• Add SSRV_LPORTFW="1337:22,1111:21" env var: Same as -L argument
• Add -N arg: Don't execute commands. (Use with port forwarding)
• Add SSRV_NO_EXEC=1 env var: Same as -N argument