[DOC] fix doi

[FIX] Heuristics to prevent #776

[FIX] RuntimeWarning: divide by zero encountered in float_scalars

[FIX] Revert echo grouping

Close #927

It seems like we may be hitting memory errors masked by the convergence error (``LinAlgErr``).

Two changes are meant to solve this:
  - Better memory calculation for the node
  - Repeat the execution if failed, up to 10 times.

Attempts to fix #776

Do not group echoes in multi-echo datasets so that each echo is processed
separately (while we work on #921 for a long-term solution)

Fixes #928

[FIX] INU correction before merging several T1w

[DOC] Add @emdupre to zenodo