BUG 0000 "Improvement in the cases list" SOLVED

- Problem in the ordering of the column in cases list
- Validation for the ordering of the column
- Improvement in the cases list using the field DEL_LAST_INDEX
- Improvement in the cases list columns current user and current task
- Improvement in the cases list when solr is enabled and disabled
- Added column currrent user in participated
* Available from version ProcessMaker-2.0.46