added a new ica notebook using image data, fixed typo in other notebooks
Merge pull request #1689 from pickle27/develop

added a new ica notebook using image data, fixed typo in other notebooks
Merge pull request #1690 from lambday/develop

added set seed for failing unit-test
Several minor improvements in the LMNN notebook.
Links to Doxygen, references section, spell check.
Merge pull request #1691 from iglesias/feature/lmnn

Several minor improvements in the LMNN notebook.
disable SSE on CYGWIN
require new data version
Fix ipython notebooks

- drop corrupt logdet.ipynb
- don't pickle dump/load results in FGM
log-det ipython notebook json error fixed