Merge pull request #907 from karlnapf/master

removed some warnings via adding documentation
Merge pull request #909 from karlnapf/master

more warnings removed
fix integration test directory
Update for tapkee

- Fixed dense eigenembedding method
- Better parameters macro structure
- t-SNE preparation
- Debug logging level
add missing doxygen documentation
fix ar warning
remove unstable warning about oligo/SLIK kernels
a few more doxygen fixes
fix logging of functions
A few fixes for Tapkee:

- Correct implementation for NPE, LLTSA and LPP
- Parallel implementation of isomap
- Parallel implementation of lle
- Proper consts
- Proper timing
fix loglevel_above check
Added -Wno-unknown-pragmas key to ignore openmp pragmas
Fixed includes in tapkee and fixed wrong segment of eigenvalues in
generalized eigenembedding
Commented out initParallel of eigen in tapkee
Add some comments for CCSOSVM
Merge pull request #910 from vigsterkr/master

Add some comments for CCSOSVM
remove NO_IMPORT define and numpy include in sg_print_functions.cpp

this fixes the long standing warning:
‘int _import_array()’ defined but not used
fix a minor warnings when pthreads are not available
Adjusted width to avoid errors in laplacian eigenmaps
fix various examples

- to not print anything
- wrong function names (or file name euclidian vs euclidean)