Added the codeBlocks key to the .gitignore file.
Added my name and those who helped me to the Changelog file. Implemented various changes from a second code review by Stéphane; JackIIODriver::Attach is now JackIIODriver::Open. JackIIODriver::Detach is now JackIIODriver::Close. driver_initialize now uses 'goto' on error to reduce replication.