Orphane non-documented classes

[lefterav]

In the package structure there are many classes that are not documented at all and are not obviously used by another part of the program. For most of them, one could guess their possible use by the name or the code, but this should be clarified, documented (or maybe removed?)

[lspecia]

could you provide Kashif with some examples of such classes? Btw, I know Kashif has been doing a lot of cleaning on his branch for the release for WMT, not sure he has committed those.