Cleaning up command line options

	modified:   core/include/OptParser.h

renamed option: pluginext to intprob

	modified:   core/src/GammaComboEngine.cpp

added a check for the number of 2D colors

removed quickhack to scale down LHCb errors

	modified:   core/src/MethodPluginScan.cpp

renamed option: pluginext to intprob

	modified:   core/src/OneMinusClPlotAbs.cpp

removed quickhack that changed file names

	modified:   core/src/OptParser.cpp

- Cleaned up the interface before GC is released. A lot of now
useless stuff was still there...

- renamed option: pluginext to intprob

- deactivated: jobdir, nBBpoints, pevid, probimprove, relation

- removed option: npoints2d, it's behavior got reabsorbed in the other
point arguments

- removed some options for the -a argument

- added a check for the --var argument, we only accept it 0,1,2 times now

	modified:   core/src/ToyTree.cpp

- changed one instance of BergerBoos_id to just id in the control plots,
that was wrong before

- removed extra treatment for a few gamma combination variables in control
plots