Bruker compatibility and dcm2niix hotfix (+fix typo in tag)

• upgrades to dcm2niix 2019-08-01 pre-release, using @yinglilu fork with hotfixes for dwi data
• additions to Bruker 9.4T heuristic (cfmm_bruker) to include multi-echo gre, dwi, and mp2rage (based on ex-vivo cat brain protocol)