* Add new asciidoc Beginners' Guide and manual pages. The guide and man
pages are built if asciidoc and a2x utilities are present on the build
system.
* Install man pages and fldigi-shell.
* Update build system to automatically copy the HTML version of the
guide to the source.
* Add missing config.h include.
* Change "invalid option" error message.
Stelios Bounanos