Issue #1230500, The calendar row logic was failing if there was more than one date field in a node due to a bad return value. Also fixed some errors caused by not returning an empty array for missing values.

Issue #1236610, Allow the calendar style to work with any row plugin that extends the calendar_row_plugin.

Issue #1315328, Default calendar had date arguments in the master, which affected the upcoming view.

Issue #1268780 by drewkeller,  in calendar_preprocess_date_views_pager() seems to be incorrect when base_path() is /

Issue #1265616, Rework the calendar display links into tabs and the Add link into an action item, and add hook_calendar_links_alter().

Issue #1261478 by stevector and KarenS, Reconfigure the back/next buttons into item lists so Views ajax pager works right.

The row plugin needs to clone the node before altering it, or other views on the same page that use the same node will acquire things like the 'date_id' that the row plugin is setting.

Issue #1222770 Lighten the color of the date in month 'overflow' days so it is clearer that they are out of scope for the view.

Issue #1223500 Fix the day link in the year view to point to the day view rather than the year view.

Change the default setting for the day view and make sure that the style does not try to create overlap items if it is missing the groupby value (which the default view was doing.)

Issue #1168672 Temporary workaround for missing date info in calendar style. Still need a smarter fix.

Issue #1222736 Fix export errors caused when previous export fix of using export plugins got broken by changes in Views.