NF: One/two-sided tests in permuted OLS (replace F-test with t-test)
permuted OLS: clean example (matplotlib colorbar stuffs)
Typos
Typos (2)
Merge pull request #178 from VirgileFritsch/master

BF: correct sign swap in permuted_ols
Fix typo
Download dataset in sandbox
Fix #159
[WIP] NF: Downloader for the Localizer dataset.
Localizer: remove previously introduced 'subfolder' trick.
Localizer: Add example + function to download one structural image
Localizer: data fetcher is more compliant with available tools.
Localizer: Nice plot of background anat in example.
Localizer: Warning when wrong number of subjects provided.
Localizer: Correct number of detections in example.
Localizer: Better contrast names (WIP)
Localizer: Contrast naming
Localizer: Fetch calculation task helper function/
Localizer: cosmit.
Localizer: (cosmit) slice selection in example.
Localizer: name of the downloaded archive is now unique.