Remove compatibility stubs for old bundle op classes and document.
The compatibility stubs were not fully functional, so rather than expend a lot of time fixing the stubs, we have done away with the old names for the bundle ops. Added documentation for this in the manual, as a new FAQ. While indexing the class names, I found that we incorrectly used findex for classes, instead of tindex. Added syncodeindex so that we can use the tindex command going forward without breaking everything.