cpoll: AsyncValue: fixed assignment operator and copy constructor to copy cbAddr too
cpoll: MemoryStream: adjust bufferPos if it's out-of-range after a setLength() call
cppsp: set O_CLOEXEC on temp fds
cppsp: fixed error handling in case of a dynamic linker error when loading a page
cppsp: use ".so" filename extension for temp shared libraries
cppsp: add "poll" field to cppsp::Server
package_cppsp: include -lcryptopp (for websocket support)