src/commands.c: Fix incorrect codes in proj string for S-MERC (all
are set to zero, so this change has no actual effect).
src/commands.c: Make sure all proj strings have "+no_defs".
doc/manual.sgml,src/commands.c,tests/cs.svx: Add support for
"*cs eur79z30" and *cs with epsg and esri codes.
doc/manual.sgml,src/commands.c,tests/: Add support for "*cs ijtsk"
and "*cs ijtsk03".