docs: small fixes in the tutorial
tests: rename markdown files *.text -> *.md, fix bin/markdown.tcl
Markdown: respect HTML comments.
Markdown: process email links w/ or w/o "mailto:".
Markdown: simplified "mailto:" code.
markdown: add test for Danyil Bohdan's improvments
Revert "naive parallel test execution"

This reverts commit de731649af28486d790a1d078c2a89e595d1adf4.
runner.tcl: make sure reports always go to outdir
fixes to exception handling

* caught exception objects are deleted automatically
* final clause runs *after* handler clause
mention contributors
update changelog, add debian folder
update current version in doc/index.html
make install.tcl more robust
update changelog, tag 0.10.2
update debian/changelog
get rid of 'exports' file
Start of Windows port. Installs successfully but that's about it.
Fix - exception object $e was being accessed outside its scope.