* I left MwEmbed alone since it was scary.
* I left the half-completed commented-out ResourceLoader code in Maps as it was
* PrefSwitch was apparently broken, with a typo in remoteBasePath.
* ClickTracking and ProofreadPage now demostrate two different styles of multi-module registration. Choose which one you prefer.
* SemanticMediaWiki/SMW.hooks.php became empty and was deleted.
* Tested using a special script that includes extension setup files and checks $wgResourceModules for correctness.
What actually happens here
* Add $localBasePath, $remoteBasePath params to the FileModule constructor, defaulting to $IP and $wgScriptPath respectively
* Add getLocalPath() and getRemotePath(), which use this information to build a proper FS or URL path for a file
* Make readScriptFiles() non-static so it can use these functions
* Run every single file path we use through either getLocalPath() or getRemotePath() as appropriate
** Except file dependencies, these are already prefixed. Our inability to give them special treatment caused bugs earlier
* Kill prefixFilePathList() and resolveFilePath(), no longer needed
* Abstracted the requirements concept being used to hack in the iframe as a context extension requirement
* Removed some hardcoding for iframe stuff
* Moved about 60k of JavaScript code out of the main wikiEditor script, and into an iframe only context extension.
