Test item XSLT was ignoring <stylesheet>. Fixed.
Minor improvements to choiceInteraction XSLT:

1. Widgets are now listed on the left by default.
2. Bad response text handles min=max case better.
CandidateSessionOutcome: base_type may be NULL

Fixed to allow this to be NULL, which can happen when storing
record variables.
A couple of minor doc/structure fixes
OV recording now handles MathsContent better
Fixed corner case in XSLT util fn
Fixed bug in checking for MathJax
Upgraded to MathJax 2.1
single item XSLT: change complete -> finished
Minor tweaks to math input help
rendering CSS: tweak to cand status & prompt
Additional logging when rendering XSLT pipe fails
Updated rendering of mathEntryInteraction

* Now has 2 orientations and a guess is made as to which to use
* Slightly different colours used.
XSLT now maintains @class for feedbackInline/Block
Started on CSS for mathassess examples.

Just working on MAD01-newSRinRP.xml for now; will expand to other
examples in due course.
Further minor tweaks to mathEntryInteraction rendering
Upgraded pipeline failure log level to ERROR