optiRum 0.31
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Bug fixes:

- Removed use of tempdir() in generatePDF tests that was causing CRAN Windows compilation issues

optiRum 0.30
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Bug fixes:

- Use of the data.table package was resulting in errors in generatePDF.  
Code has been amended to work under a new environment within the global package
- The generatePDF function did not correctly pass ... to internal functions.  
This has now been changed, primarily for the benefit of being able to compile with 
xelatex etc

New:
- thousands has been created to provide a neater format for scales and presentations
- pounds has been created to provide a neater format for scales and presentations