Minor tweak to TextSoap extension

...Of course literally a couple minutes after I posted to say that there shouldn't be any changes needed to the TextSoap extension, the TS developer told me that he's found that using the application ID for the textSoapAgent is more dependable (and easier to debug when things go wrong). So I've made a minor tweak to the AppleScript, bumped the version number, and here's the push (looks like the zipped version might need to be regenerated, though, since I have no way to sign it).