Views support for 'Global: View result counter' in feature style labels (counter on markers)

I spent some time trying to figure out how to make the 'Global: View result counter' work as marker labels. There were a few problems.

This is how I solved the problem:
* I am using the most recent version of Open Layers which has strk's dynamic styles.
* The Views field for the View result counter provides an attribute 'counter' - only the attribute ${counter_rendered} is available.
* One problem is that since this is a Views global field, it had an 'unknown' field alias. If you also use 'Custom Text' or any location fields, I noticed there were some little problems that seem to do with unaccounted for field data getting shoved into 'unknown' - however, when OpenLayers rendered fields, it will read through all the fields and count 'unknown' as processed.

To fix that problem, the field needs a field alias. The best place I could think to add the field alias was in the 'views_handler_field_counter.inc' in Views module. Then the alias will be counter & the attribute will be available as expected.

The other problem is that the counter handler needs the row_index to actually do its counting. To fix that problem, the map_features function in 'openlayers_views_style_data.inc' needed to set the row_index.

Attaching two patches, one for views, and one for OpenLayers.

I know this will *fix* the problem, but in terms of proper use of the Views API and if these are the best places to add the data...I'm not totally sure. If patching Views is too much of a pain, the OL could probably look to see if the handler is the one for the 'counter' - since there are probably only 2 'unknown' views fields.