more about pruning servers, specifc abe version, spelling errors
add empty defaults for ssl key/cert config for assert to work
Merge remote-tracking branch 'upstream/master'

Conflicts:
	README.md
Merge pull request #16 from EagleTM/master

fix default ssl cert/key / HOWTO update
Merge pull request #17 from WyseNynja/master

pep8