-finally make median kernel selection work
-bugfixed (added a new constructor to SGMatrix)
-added a new test for median kernel selection
Merge pull request #858 from karlnapf/master

Finally finished all mmd kernel selection methods
fix (harmless) error messages on make install

better avoid them to not confuse us users or devlopers :)
initialized random number generator for reproducible outcomes in the light of an assertion ASSERT(result->mean>0.9);
Merge pull request #859 from AlexBinder/master

init random number generator in evaluation_cross_validation_multiclass_mkl.cpp
Removed fibheap and arpack examples
Removed covertree example