README: Add coveralls.io and drone.io badges
Update INSTALL.md
INSTALL: ttfa now packaged for fedora

https://bugzilla.redhat.com/show_bug.cgi?id=1000949
INSTALL; ubuntu 12.04 needs ppa for nodejs
INSTALL; sudo npm install
Merge branch 'master' of github.com:googlefonts/fontbakery
added donald user to access by htpasswd
Using local configuration in only place.

Before we had to change some config variables in several places and
DATA_ROOT is hardcoded to project data directory - not config
import module from_object
put to pyfile absolute path to local config