Merge pull request #853 from karlnapf/master

attempt to heal build
fix serialization for sparse features and serializableasciireader

thanks Christian Hentschel for the patch
Integrated the tapkee library
Another missed step of tapkee integration
Disabled superlu by default
Updated KLLE
Backcompatibility for older eigen3
Removed unnecessary omp include
Fallback for no arpack
Fixed backcompatibility sparse matrix building
Updated tapkee defines
Fixed mds and isomap eigennormalization
Added missed parameter for l-isomap
fix ordering of const - closes #855
don't define SGMatrixList in SGMatrix but vice versa
Only ever enable swig's directors with python (Closes #843)
Merge pull request #854 from lisitsyn/tapkee_merging

Tapkee library integration
Fixed requirement in static converter interface
Fixed ifdef in laplacian eigenmaps
More lapack genocide in converter module