make indent
reflow README to 80 columns, fix interpunction/capitalization
remove obsolete XXX comment
consistent markdown usage
mention dependencies in installation sections
extend installation/dependency notes in README (fixes #22)

Thanks to @gene for the RPM instructions.
Merge branch 'master' into gozer
Add support for httpd-2.4
Merge remote-tracking branch 'upstream/master' into gozer

Conflicts:
	README.md