test suite html output

[Johannes Pfau]

I wrote a small tool to generate html tables from the testsuite logs,
an example is here:
http://dl.dropbox.com/u/24218791/gdc-testsuite/testsuite.html

I'll publish the tool/sources soon.

Current features:
 * Summary of the test results (overall, compilable, runnable,
   fail_compilation)
 * Detailed test results
 * Test names are linked to test case files on github
 * architecture names can be linked to custom locations
 * CSS tooltips display extended information about the test
   architecture & test results
 * the detailed tests link to the correct line in the output log.
   This seems to work fine afaics, although it's a stress test for
   webbrowsers as the log files are quite big