CRM-17869 - Revert custom field date search refactoring to support relative dates

[colemanw]

• CRM-17869: Custom field relative date filter searching removed in date picker tidy up

[monishdeb]

Great work! Happy to test this improvement when its ready :)

[colemanw]

@monishdeb it's ready for review. Thanks.

[monishdeb]

@colemanw tested on each component's Search form, working like a charm. However I encountered a issue with saved date range criteria of a smart group. Steps to replicate -

1. Selected custom date field of range - 1st Oct to 31st Oct on Advance Search
2. Created smart group on above date range criteria.
3. On edit Smart group criteria form, the date range widget is broken
   

And these are default values in ISO format

...
    [custom_8_to] => 2016-10-31 23:59:59
    [custom_8_from] => 2016-10-01 0:00:00
...

As per my earlier change here. Is this the expected format ?

[monishdeb]

@colemanw this is my PR #9334 on top of your patch and its working fine