Word Wrapping in emacs
http://www.rpi.edu/dept/acs/rpinfo/common/Computing/Consulting/Software/Emacs/Hints/word_wrap.html
To enter word wrap mode from within emacs, enter the following command:
Meta-x auto-fill-mode
To word wrap a pre-existing paragraph, enter:
Meta-q
To word wrap and full-justify a pre-existing paragraph, enter:
Ctrl-u Meta-q
NOTE: On RCS, use the ESC key in place of the Meta key.