incorporate commons math
introduce static logging method - for legacy debugging
introduce dependency on commons maths
incorporate/share commons math
minor tidying, to allow Plot refresh when we're looking at an SATC plot
first steps towards updated infill interpolation
test file for gen infill
 Consider registering Debrief file types in MS Windows #797
Issue #916 - challenge with Ant doc build

The "automatically transform Eclipse cheat-sheets to PDF tutorials" task has been implemented as shell script.
There are two issues:

- works on Linux only (maybe on Mac)
- require ant 1.9.4 (doesn't work with 1.9.2)
Merge pull request #918 from pecko/issue916

Issue #916 - challenge with Ant doc build
Minor tidying, to verify new build
Merge pull request #919 from debrief/verify_travis_PDF

Minor tidying, to verify new build
Issue #916 - Running dita2pdf.sh only on Unix/Linux/Mac
Merge pull request #920 from pecko/issue916a

Issue #916 - Running dita2pdf.sh only on Unix/Linux/Mac
Merge pull request #917 from kumarbabu/Issue797_regDebriefFileType

Register Debrief file types in MS Windows #797
introduce new cheat sheet home page
remove the spare DITA formatting files
remove another "spare" instance of config
we don't need to store this any more
Merge pull request #921 from debrief/pdf_tidy_cheat

Pdf tidy cheat