Remove error and warning count attributes

[AndrewSales]

xvrl/sample/sample1.xml

Line 40 in 19438c4

<validation-report valid="false" errors="2" warnings="0">

I can see the merit of an at-a-glance digest, but it does duplicate information inherent in the report, and there is scope (as in this example) for it to be incorrect.

[gimsieke]

Yes, let’s remove them

[gimsieke]

I moved the summary information into a digest element and documented in the schema that you need to decide for yourself whether you can trust it.
It is now also possible to remove the report elements altogether (if they’d blow up the XVRL document to megabytes but you are only interested in getting the overall validity information). In this case, a digest is no longer optional.