=Non-blocking Buffers=

This implements lock-free communication between a single producer and consumer over shared memory in Linux. It's really not that much code, or very optimized, but it works pretty well for our CS262a research project.

Nameserver will take request to get/open channels from service/clients. The format of the request will be TYPE (ie: service or client), NAMESERVER

Quirkyness:
- Interrupts only used by the person SENDING & polling is used by the person READING (We assume that the reply will not be that far into the future)
- calloc() is used instead of malloc() in some parts of program so that no junk bytes are present

Simplicity made (Possibly TODOs in the future):
- Client could only make one connection to a unique server
- Fixed size array is used!!!
- Nameserver will always reside in slot 0 for simplicity & connection to it is never going to be closed.

Glossary: 
id = the actual id to refer to the shared memory segment
slot = the slot in the array of whatever the thing (nameserver, etc) is keeping track of (eg: services registered)
**Q_Q** = Special message that's used for the client to register itself to the server