Merge pull request #123 from keithj/devel

Restored PDF files; these are required indirectly by tests
Merge pull request #124 from keithj/devel

Post user-testing fixes
Merge pull request #125 from keithj/devel

Updates to UTF8 handling, warehouse SQL and configuration defaults
Gracefully deal with NaN values in .sim input
Merge pull request #126 from keithj/devel

Refinements to iRODS support, UTF8 support and configuration
Merge pull request #127 from iainrb/devel

Gracefully deal with NaN values in .sim input for QC
Merge pull request #128 from keithj/devel

Refactored workflow test setup