#189093 Trying a different method of including views files and functions to see if it will fix the mysterious errors reported in numerous issues where arguments disappear.

Get rid of constants for DATE_TIMEZONES and DATE_API_PATH since they sometimes don't get defined before they are needed.

Lots of fixes for the update processes. Get rid of older updates that are re-done in later updates and create a data_integrity and db_integrity update.

#163712 fix some subtle problems in link titles and query parameters when working with partial ISO dates, like only year and month.

#175914 make sure month and day don't get set to zero when creating timestamps to format dates, since zero values will revert to the previous day. Patch by derhasi.

#175914 make sure month and day don't get set to zero when creating timestamps to format dates, since zero values will revert to the previous day. Patch by derhasi.

#160052 make sure no errors are thrown when gmmktime is called and 'all' is one of the arguments. Thanks to mmoreno for the help.

Add reworked ical file as developed for 5.2 version of date module. This file can parse many additional parts of the ical file and won't mistakenly perform timezone conversions on imported data.

Set up simpletest and found a problem with timezone handling in southern timezones, this will fix it.