FriCAS Code

rename axiom to fricas in code and documentation

AXIOM env variable --> FRICAS
AXIOMEDITOR --> FRICASEDITOR
AXIOMsys --> FRICASsys
axiom-wiki --> fricas-wiki
axiom --> fricas in message file s2-us.msgs
axiom-xl --> aldor
A# --> Aldor

The following changes require a newer Aldor compiler.
At least 13e5b90eecc79ec6704efb333c4c100187520e80 from 30-Jul-2019.
Before that the name libfricas was not treated correctly by Aldor.
libaxiom.al --> libfricas.al
axiom.as --> fricas.as

Remove duplicated argument in src/sman/Makefile.in

Spelling fixes

Fix some warnings

Clean up C code

Remove unused noweb stuff.

Silence some warnings.

remove trailing whitespace, trailing empty lines, expand tabs

remove trailing whitespace
find . -type f -a ! -regex '\./\.git/.*' -a ! -name '*.ps' -a ! -name '*.daase' -a ! -name '*.icns' -exec sed -i 's/[ \t]*$//' {} \;

remove trailing empty lines
find . -type f -a ! -regex '\./\.git/.*' -a ! -name '*.ps' -a ! -name '*.daase' -a ! -name '*.icns' -exec sed -i -e :a -e '/^\n*$/{$d;N;};/\n$/ba' {} \;

expand tabs to spaces
for f in $(grep -lR ' ' *|grep -v Make|grep -v config|fgrep -v '.as'|grep -v '.ht$'|grep -v 'diff$'|grep -v 'icns$'|grep -v rules|grep -v ChangeLog); do expand $f > $f.x; mv $f.x $f; done

More renames of 'Axiom' to 'FriCAS'.

Rename C config header.