bugprobhunt: mathjax in base.html.
bugprobhunt: template hierarchy reimplemented.

Necessary for bugprob afterall.
bugprobhunt: hasbug with really 1/4 chance (I hope).
tools/csvt2ttable: generates correct txt2tags tables from CSV

With header line.
bugprobhunt: using t2t as intermediate for tables.

We get header lines this way.
bugprobhunt: probability of parameter => likelihood.

Also: some text improvements.
bugprob: more development and "Back to Bug" chapter.
bugprobhunt: commiting trials.csv to keep it stable.
bugprobhunt/*.R: code improvements.
bugprobhunt: "optimal testing" chapter.
bugprobhunt: comment about source code of page.
bugprobhunt: info.yaml.