---------------------
* ENH: Allow models without non-HRF variables (https://github.com/poldracklab/fitlins/pull/55)
* ENH: Make dataset_description optional (https://github.com/poldracklab/fitlins/pull/51)
* ENH: Loop over preproc files, instead of raw BOLD files (https://github.com/poldracklab/fitlins/pull/50)
* ENH: Add --n-cpus option to CLI (https://github.com/poldracklab/fitlins/pull/49)
* ENH: Run datasinks on main thread (https://github.com/poldracklab/fitlins/pull/39)
* ENH: Enable derivative label to tag pipelines (https://github.com/poldracklab/fitlins/pull/37)
* ENH: Make dataset description (https://github.com/poldracklab/fitlins/pull/29)
* ENH: Add trivial dataset_description.json (https://github.com/poldracklab/fitlins/pull/31)
* ENH: Run auto model by default (https://github.com/poldracklab/fitlins/pull/26)
* ENH: Rewrite first level analysis as Nipype workflow (https://github.com/poldracklab/fitlins/pull/16)
* ENH: Add acq, rec, run and echo to output patterns (https://github.com/poldracklab/fitlins/pull/20)
* FIX: Second level contrast computation, and dense/sparse transformation issues (https://github.com/poldracklab/fitlins/pull/48)
* FIX: Include run in derivative names (https://github.com/poldracklab/fitlins/pull/43)
* FIX: Force string input to snake_to_camel (https://github.com/poldracklab/fitlins/pull/41)
* FIX: Versioneer adjustments (https://github.com/poldracklab/fitlins/pull/36)
* FIX: Create group level results dir (https://github.com/poldracklab/fitlins/pull/22)
* RF: Simplify entry-points, restore preproc discovery (https://github.com/poldracklab/fitlins/pull/38)
* MAINT: Update pybids 0.6.3, grabbit 0.2.1 (https://github.com/poldracklab/fitlins/pull/52)
* MAINT: Manage version with versioneer (https://github.com/poldracklab/fitlins/pull/35)
* MAINT: Neuroscout changes / pybids updates (https://github.com/poldracklab/fitlins/pull/28)
* MAINT: Add nipype dependency, remove unused code (https://github.com/poldracklab/fitlins/pull/27)