Minor resource loader changes:

Minor resource loader changes:
* Broke some long lines, converted some overly complex ternary operators to if()
* Added lots of line breaks into the output, for easier debugging.
* Added profiling for various functions.
* wfGetDb -> wfGetDB
* Fixed escaping in ResourceLoaderStartUpModule::getScript(), escape for JS rather than assuming Html::linkedScript() won't have any bad characters in it.