[gh-675] Various low-impact module upgrades

sites/all/modules/date/CHANGELOG.txt

sites/all/modules/date/date.field.inc

sites/all/modules/date/date.info

sites/all/modules/date/date.install

sites/all/modules/date/date.theme

sites/all/modules/date/date_admin.inc

sites/all/modules/date/date_all_day/date_all_day.info

sites/all/modules/date/date_api/date_api.info

sites/all/modules/date/date_api/date_api.install

sites/all/modules/date/date_api/date_api.module

sites/all/modules/date/date_api/date_api_elements.inc

sites/all/modules/date/date_api/date_api_ical.inc

sites/all/modules/date/date_api/date_api_sql.inc

sites/all/modules/date/date_context/date_context.info

sites/all/modules/date/date_context/date_context.module

...date/date_context/plugins/date_context_date_condition.inc

sites/all/modules/date/date_migrate/date_migrate.info

...te_migrate/date_migrate_example/date_migrate_example.info

sites/all/modules/date/date_popup/date_popup.info

sites/all/modules/date/date_popup/date_popup.module