Finished migration to restructured text format

Some minor updates and fixes as well.


git-svn-id: svn://svn.code.sf.net/p/amforth/code/trunk@1428 fd1c0b69-5d68-47f5-910c-86182ebb6ecd
Merge remote-tracking branch 'git-svn'
comments insignificanto
Soft interrupts queue output cleaned-up (?)