hide stackr-footer and stackr-buttons by default -> show on hover on stackr-wrapper
added border-radius for operator-buttons and ui-buttons
introduced element-hoverable class -> generic class to elements which should be visible on hover; removed old references
split section-hidden and section-hoverable
added section-hoverable-active and section-hidden-active
replaced visible:hidden in list-contexts-stackrs, context-options-box by element-hoverable
renamed css class: wrapper_context -> context-wrapper
moved css class together
renamed css class: context_delete_confirmation -> context-delete-confirm
renamed css class: entry_delete_confirmation -> stackr-delete-confirm
renamed css class: wrapper_context -> context-wrapper
renamed css class: context_delete_link -> context-delete-link
renamed css classes: *_delete_link -> *-delete-link
adjusted comments
div.element-hidden -> .element-hidden
removed comment
display: none for stackr-footer section
removed li.comment padding -> moved to div.comment-text instead
changed document root of application
changed padding for li.comment and div.comment-text