Cleaned up documentation

• Fixed warnings for different section levels

• put all detectors in subdirectory.

  new file: .gitignore new file: InputEvents.rst modified: contents.rst renamed: Calorimeters.rst -> detectors/Calorimeters.rst renamed: EMCalorimeterSoLID.rst -> detectors/EMCalorimeterSoLID.rst renamed: RomanPot.rst -> detectors/RomanPot.rst new file: detectors/Trackers.rst renamed: detectors.rst -> detectors/detectors.rst