Organize the files for addition of unit testing.
Copyright and file organization.
Merge branch 'master' into test

Conflicts:
	lisp/error-analysis.lisp
	lisp/floating-point.asd
	lisp/floating-point.lisp
Move merged files to the lisp directory.
default-epsilon unit tests.
Simplify the sequence methods of default-epsilon with LOOP.
relative-error unit tests.
Formatting.
What Every Computer Scientist Should Know About Floating-Point Arithmetic.
Remove functions that work on sequences.

Add them to the linear algebra package.
Remove the sequence routines to focus on floating point functions.

The sequence related routines are better handled in the linear algebra
library.
Dangling sequence functions and formatting.
Remove %sigfig-equal since it is now redundant.
Floating point constants. First constant is pi/2.
MIT copyright and formatting.
Update the copyright for the tests.