Tidying of OME-TIFF supporters
Minor extra changes from Jason
Merge pull request #369 from rleigh-dundee/cpp-cleanup-develop

Cpp: Correct content and markup
fix developer CI page titles
add "|" around branch name to match other one
fix list punctuation
explain "on hold" GH issue label
simplify discussion of scc dependencies in Python
change "scc" style
stopgap solution suggested by @hflynn
fix typo
Merge pull request #437 from rleigh-dundee/xelatex-pdf-develop

Generate PDF using XeLaTeX
Merge pull request #461 from hflynn/tiff_tidy

Tidying of OME-TIFF supporters
merge develop -D org -I include -E exclude: PR 450 (omero: Python 2.6 is the minimum supported version)
merge develop -D org -I include -E exclude: PR 462 (Adjusted titles of continuous integration developer pages (rebased onto develop))