Added usage information for my new waffles_learn boost options.  I added the usage information on the trunk rather than in my branch because I am going to test that merging works correctly after the repo upgrade.
Added usage information for my new waffles_learn boost options.  I
added the usage information on the trunk rather than in my branch
because I am going to test that merging works correctly after the repo
upgrade.


kslazarev/waffles,kslazarev/waffles,kslazarev/waffles,kslazarev/waffles,kslazarev/waffles