A LOT of I18n improvements and little fixes;
including, but not limited to, date and time localization!

* changed method "time_in_words" inside application_helper.rb:
	The dates displayed next to comments and inside the proposals are localized
* translated last step of welcome wizard
* added confirmation when offering as editor
* the left panel in the proposal now show the time passed in addition the exact date
* changed tooltip for the quorum: now it's the same as the description of the quorum
* translated proposal paragraphs
* translated 500 error page

Commit before merging with version_3
Merge branch 'version_2_8' of https://github.com/coorasse/Airesis.git into version_2_9

Conflicts:
	app/controllers/proposals_controller.rb
little fix for English (US)
Merge branch 'version_3_0' of https://github.com/coorasse/Airesis.git into version_3_0

Conflicts:
	app/models/quorum.rb
	app/views/proposal_types/_last_step.html.erb
	app/views/proposals/edit.html.erb
	config/locales/en.yml
	config/locales/it-IT.yml
	db/schema.rb
Little I18n fixes
I18n paragraph of proposal
I18n forum
ckeditor toolbar for proposal
Added icons to forum buttons (work not finished)
En translation missings!
I18n improvements
Forum I18n
Added icons to forum buttons
Used new rank bar in proposal/show.html
Ckeditor in group description
Merge branch 'version_3_0' of https://github.com/coorasse/Airesis.git into version_3_0

Conflicts:
	app/controllers/proposals_controller.rb
	app/views/proposals/_mini_proposal.html.erb
	app/views/proposals/edit.html.erb
	config/locales/en.yml
	config/locales/it-IT.yml
little fixes with proposal wizard
resolved errors from last merge
Merge branch 'time_zone_pull' into version_3_0
fixed Crowdin integration

Conflicts:
	config/locales/it-IT.yml
I18n
Time-picker localization
I18n improvements
time-picker
fixed string
Merge branch 'version_3_0' of https://github.com/coorasse/Airesis.git into version_3_0

Conflicts:
	db/schema.rb
remove config files
Merge branch 'version_3_0' of https://github.com/coorasse/Airesis.git into version_3_0

Conflicts:
	app/views/proposals/_show_tooltips.html.erb
	app/views/proposals/_tab_list.html.erb
	config/environments/development.rb
	config/initializers/maktoub.rb
	config/locales/en.yml
Merge branch 'version_3_0' of https://github.com/mion00/Airesis into version_3_0

Conflicts:
	app/views/proposals/_proposal_list_element.html.erb
	app/views/proposals/_tab_list.html.erb
	config/locales/it-IT.yml