Fix minor correctness issues: CSV headers/typos, file closes, ConfigFile croak call, reports counter

[shbhmexe]

Summary

This PR delivers a set of focused, safe fixes discovered while reviewing the codebase:

• CSV header correctness and spelling in src/csvdump.py:
  • ChangeSets CSV header now matches the actual column order (Email, then Domain).
  • Correct "Affliation" → "Affiliation" in both CSV outputs.
  • Explicitly close CSV files after writing to avoid leaking descriptors on long runs.
• Config parsing robustness in src/ConfigFile.py:
  • Replace ConfigFile.croak(...) with module-level croak(...) inside ReadFileType; prevents a potential NameError when encountering malformed file type lines.
• Reporting stability in src/reports.py:
  • Fix accumulator variable typo in ReportByReports (reported is incremented). This avoids a runtime NameError when generating report credit summaries.

Reasoning and impact

• The CSV header fix aligns metadata with emitted data, which prevents downstream misinterpretation when tools ingest the CSVs.
• Typos corrected for clarity when consuming CSVs programmatically.
• Properly closing files is a low-risk stability improvement and avoids running into OS file handle limits in batch runs.
• The croak(...) fix ensures configuration errors surface correctly instead of raising an unrelated NameError.
• The reported counter fix restores intended behavior in reports without changing report content logic.

Scope and risk

• No feature changes or behavior changes beyond correcting header text and the Email/Domain column order to match the existing data order.
• Python version semantics are left intact (code remains Python 2–style; no modernization applied).
• Changes are localized and do not alter public interfaces or control flow.

Validation

• Grepped for remaining typos ("Affliation") — none remain.
• The ReportByReports path now uses an existing variable like other report functions.
• Config error handling now correctly calls the module-level croak().