Automatically load 1D data fetched from ABIDE
Update developper documentation for datasets.
DOC: reorganise examples
DOC: tweak example titles
Use header checking files to uncompress, add tests.
Add header check for gzip format and test.
Use auto_examples in image target for consistency
Fix broken links after examples reorganisation
Add links to documentation in examples section
Merge pull request #308 from lesteve/reorganise-examples

[MRG] Reorganise examples
display: add threshold for colorbar
removed double data masking