Initial working commit in r525, with the help of previous commits related to 
path handling (r517, r519).

These are all OK:
txt2tags --config-file http://txt2tags.org/test/includeconf.t2t -i file.t2t
txt2tags --css-inside --style http://txt2tags.org/test/file.css -i file.t2t
%!includeconf: http://txt2tags.org/test/includeconf.t2t
%!style: http://txt2tags.org/test/file.css
%!include: http://txt2tags.org/test/include-t2t.t2t
%!include: ""http://txt2tags.org/test/include-raw.t2t""
%!include: ''http://txt2tags.org/test/include-tagged.t2t''
%!include: ``http://txt2tags.org/test/include-verb.t2t``
%!csv: http://txt2tags.org/test/file.csv

This is raising error because %%mtime, fix needed:
txt2tags -t html -i http://txt2tags.org/index.t2t -o index.html

This is not working because template loading is doing checks before calling 
Readfile. Fix needed:
txt2tags -t html --template http://txt2tags.org/test/template.html file.t2t

See also the new trunk/test/http folder.

Remote templates are now working (r526).

OK: txt2tags -t html --template http://txt2tags.org/test/template.html file.t2t

%%mtime for remote files is now working (r530).

$ txt2tags -i http://txt2tags.org/index.t2t -o /tmp/index.html
txt2tags wrote /tmp/index.html

\o/

Now that everything is working fine, we just need more extensive tests to close 
this issue.

Missing remote files (404) are now detected (r531).

$ txt2tags http://txt2tags.org/UFO 
txt2tags: Error: Cannot read file: http://txt2tags.org/UFO

This issue was closed by revision r533.