Busy with the manual....
New basis for pix.h

The graph based approach before was very complex,
confusing and hard to work with. But now it all goes
into a simple size_t structure! It is now extremely
easier to work with than before. Also for the 50
default mock galaxies, the speed increased by 20%!
I have fully explained it in the manual (Graph canvas).
Neighbor checking done through a two way simple
linked list, where each element has pointers
to its next and previous elements. By doing this,
I was able to begin checking from the inside and
come out.
Before it was a simple First in, First out queue,
so in one direction it went to the end of the
truncation radius and then continued. This was bad
in terms of managing the integration.

A minor fix in README.md

The '*' and pointer names in forqsort.c and .h
had a space between them, I corrected them to be
stuck together only to be the same as all the other
functions, nothing serious at all!
Merge branch 'master' of ssh://github.com/makhlaghi/mockgals

Conflicts:
	README.md

Mohammad-reza and I had made the same change to
README.md, so I had to merge the two!