improve seeds and add .ruby-gemset to gitignore
Created by: adipasquale
Improve seeds:
- pass variables instead of relying on first id being 1
- improve created models attributes defaults
- create a PlageOuverture model
and the .ruby-gemset file is useful for rvm
, my terminal is configured to auto switch gemset when entering this repo (it's a bit overkill considering bundler but I'm used to it)