[NotReady] created model session and made rake task generate session objects for each session on the site
 [NotReady] created model session and made rake task generate session objects for each session on the site
Merge branch 'master' into calendar_2

Conflicts:
	spec/helpers/sessions_scrapper_helper_spec.rb
Merge pull request #1 from poacomovamos/calendar_2

merging calendar with work in progress from @juliohr