before major rip-up and removal of PDF::Reuse and replace with PDF::API2
preliminary move tp PDF::API2 - but then discovered the bug was due to
PDF version 1.5 being generated by pdflatex

easily fixed by putting \pdfminorversion=4 into the tex document
other updates to expadirk and a few TODOs
a few style fixes
changed testpdf.tex to produce a 1.4 pdf but still have issue with pdf::reuse
implemented using PDF::API2 to generate the PDFs for emailing
added pdf  v1.4 to testpdf.tex
added a two page order to testpdf
removed references to PDF::Reuse
comment formatting
Merge branch 'master' into pdf-api2

Conflicts:
	expadirk
	testpdf.pdf
updated testpdf