Flyspray #120: Fix several problems that were causing log output from
various template operations to get lost. Also fixed the code in mungelog.js that was supposed to handle bailing out if there was no response from the server in a reasonable amount of time; if that code had been working, no one would have even noticed all the other problems! Also some cleanup in parts of mungelog.js and showlogfile_sup.php3; slowly migrating parts of this to emulab_sup.js since we use some of the same code in other places.
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