MyCyma

[fix] rails migration: ActionController::AbstractRequest.relative_url_root has been removed

[fix] corrected sort on artworks index

[cosmetic] repeat pagination and new action controls in artworks administration page (closes #88)

[evol] artworks context menu: finished mechanism + checked for empty selection + implemented associate_with_tag action

[evol] preliminary artworks context menu (reverted license to GPL2+, to be compatible with Proto.Menu and possibly other plugins)

[evol] added tags and fixes a few typos

[evol] added more links from artwork steps to the artwork

[cosmetic] added position number to artwork_step_images, only visible in the admin pages, to be able to change order for steps made the same day (closes #16)

[cosmetic] use first artwork image instead of last for set thumbnail in the tree view (closes #17)

[cosmetic] properly align images vertically in an image list