bug report: Webix ISO8601 date parsing discrepancy

When I use webix.Date.strToDate("%c") to parse my ISO8601 dates, it fails on dates that have time zones in them unless I use webix.env.strict = true;

Here are some sample dates for you to test against:

// can read this in any case:
“2016-05-31T11:41:55.604864”

// can NOT read this without strict:
“2016-05-29T18:31:00-07:00”

Officially Webix supports ISO 8601 regardless of time zones, as shown here.

If you need to avoid the strict mode, you can modify the incoming data through some custom regexp, for example (in case of the datatable):

http://webix.com/snippet/3e970413

Tested on v3.3.13