fix bug with line continuation, add fricas-nocheck-eval
Add back definition of MAP.
Use binary search in SortedCache.
Supress sbcl style warnings due to autoloading.
make emacs mode work with ecl - suppress banner.
Use symbols for names of operator properties.
Fix issue 23.
adapt install notes for cygwin, send errors when running in emacs to /dev/null.
Better error checking in configure.
Improve coercion of types.