Inital work for task #9098 - `provide subject id in report`
Pass unittest with attribute `lab_id`
Improve error message `There is no subjects in the raw data`
+ Cleanup extra imports
+ No functionality changes
Reformat xml for easy reading in `test/TestCreateEmptyEventTreeForStudy.py`
Modify `create_empty_event_tree_for_study()`
to copy `lab_id` as a `person` element attribute
Remove unused file: `bin/utils/report.xsd`
Add the original subject id - `lab_id` to the summary report
TODO:
 - sort by lab_id
 - fix test/TestGenerateOutput.py
Add configuration option to allow sorting by lab_id or redcap_id
Cleanup unnecessary code in `test/TestCreateSummaryReport.py`
Improve comment in `bin/redi.py` about `create_summary_report()`
Note: no functionality changes
Fix `bin/utils/report.xsl` to implement sorting by: `lab_id/redcap_id`
Move caption outside the `thead` in `bin/utils/report.xsl`
Use `Subject ID/Subject Number` as column headers
Add the `report.html` as attachment
Documentation cleanup in `bin/utils/redi_email.py`
Add vagrant alias `restart_mysql`
Merge branch 'fix-show-subject-id-for-report' of https://github.com/indera/redi into indera-fix-show-subject-id-for-report

Conflicts:
	bin/utils/SimpleConfigParser.py
Merge branch 'indera-fix-show-subject-id-for-report' into develop
Merge branch 'develop' of ctsit-forge.ctsi.ufl.edu:redi-main into develop