Added utility function to get the number of processor cores
Use _SC_NPROCESSORS_ONLN instead of _SC_NPROCESSORS_CONF when counting processor cores
Use C++11 to find the number of processor cores :-)
All work and no play...
Removed old file
Fixed typo
Updated .gitignore
Added class uxmpp::io::SocketConnection
Removed unused files
Removed method 'nset' from class uxmpp::io::Timer
Polished class uxmpp::XmlInputStream
Implemented new I/O backend