[RFR] Some improvements

[manuquentin]

• Add empty-cmd argument
• Add golang container
• Add python container
• Add color in gaudi output
• Use declared variables in templates
• Check the current version to download new templates (fixes Check version number changes to retrieve new templates #47)
• Use first linked container if custom fastCgi is not set for an Apache container
• Add a use case for each container/binary
  • apache
  • apache/ php
  • apache / php / mysql
  • bower
  • couchdb
  • golang
  • jekyll
  • varnish
  • load balancing varnish
  • nginx
  • nginx/php
  • load balancing nginx
  • Master/slave mysql
  • python / memcached
  • nodejs
  • phpmyadmin
  • php
  • npm
  • composer
  • postgresql / python
  • silex / hhvm
• Add a -h option
• Update doc

[PopDaph]

+20,730 😮

[manuquentin]

2️⃣0️⃣7️⃣8️⃣3️⃣ and still counting