Merge branch 'release/0.3.12' into devel

* release/0.3.12:
  Update Gemfile.lock accordingly
  bump to version '0.3.12'
adapt contributing

Signed-off-by: Sebastien Varrette <sebastien.varrette@uni.lu>
more flexible templates:upgrade:* tasks

Signed-off-by: Sebastien Varrette <sebastien.varrette@uni.lu>
add better metadata parsing

Signed-off-by: Sebastien Varrette <sebastien.varrette@uni.lu>
add new upgrade for the tests/ spec/ from templates

Signed-off-by: Sebastien Varrette <sebastien.varrette@uni.lu>
try rspec for puppet

Signed-off-by: Sebastien Varrette <sebastien.varrette@uni.lu>
Update remote

Signed-off-by: Sebastien Varrette <sebastien.varrette@uni.lu>
bump to version '0.3.13'

Signed-off-by: Sebastien Varrette <sebastien.varrette@uni.lu>
Update Gemfile.lock accordingly

Signed-off-by: Sebastien Varrette <sebastien.varrette@uni.lu>
correct rspec

Signed-off-by: Sebastien Varrette <sebastien.varrette@uni.lu>
Merge branch 'release/0.3.13' into production

* release/0.3.13:
  correct rspec
  Update Gemfile.lock accordingly
  bump to version '0.3.13'
  Update remote
  try rspec for puppet
  add new upgrade for the tests/ spec/ from templates
  add better metadata parsing
  more flexible templates:upgrade:* tasks
  adapt contributing