Issue #1236216, Start the process of moving the repeating date integration out of the Date module and into a separate, Date Repeat Field module.

Issue #874322, The All Day functionality has been moved into a separate module and hooks were added to make it easier for other modules to inject steps into date processing.

Issue #1188380 by Xen and jherencia, use #title instead of field['label'] in date display because that has the i18n translation.

Issue #1249724 by KarenS, Gábor Hojtsy, David_Rothstein, Improve usability of date and time input configuration.

Issue #1242764 Add tests for every possible combination of field type, timezone handling, and granularity.

Issue #1239956 by David_Rothstein, Change the default separation between from and to dates to use 'to' instead of a hyphen.

Issue #1234140 by arlinsundbulte, Change terminology in user-facing text from 'From/To Date' to 'Start/End Date'.

UI cleanup for the latest changes. All dates now need to be in fieldsets because of the additional floating checkboxes. Keep the from and to dates on separate lines rather than floating them (probably should make that an option). Added notes for themers about some of the changes.

Fix some code that was still using the colon separator in the date id when everything else is now using a period.