When building gcl use local copy of bfd library.
remove superfluous signatures, implied by category membership
Merge clarification from trunk.
Small clarification to 1.0.4 release notes.
Merge last-minute updates from trunk.
Update support for Debian package.
Add 1.0.4 release notes.
Misc corrections to INSTALL.aldor
Reorder documentation
Correct definition of fricas-run.