Active high.
Removed init.
Better over/underfill cover properties for verific. Moved basic cover statement to only be used when there is no verific.
Other general tidy up.
Also updated/fixed a couple minor things in newstart.rst.
Tidying up of newstart.rst and fifo.sv to include as much code as possible by reference.
Should reduce repetition and make it easier if changes occur in source.
Worked exercise using the MAX_DATA parameter, highlighting its
incompleteness. Includes completed examples in /golden subdirectory.
Also some formatting changes for spacing and extra links.
