reverted the port-matching hack from the hoodie-server.
made sure to keep the 'mac-defaults' for missing env vars, to keep up the current behaviour on osx.
grouped couch_* vars and added an additional env-var for setting the default couch ini to use.
in spite of all the env vars popping up, some kinda config file probally would be cool.
atm on ubuntu I start hoodie with:
COUCH_BIN=/usr/bin/couchdb COUCH_PORT=5984 PORT=8083 HOODIE_PATH=/home/vagrant/projects/Hoodie COUCH_INI=/etc/couchdb/default.ini npm start
Merge branch 'ubuntu-too' of github.com:shrink/hoodie-app into ubuntu-too