Dials

* dials.image_viewer: respect kernel_size parameter (354)
* Rayonix TIFF format fixes (370)
* xia2: XDS compatibility fixes (xia2/xia2131)
* xia2: Trap non-fatal fatal error (xia2/xia2115)
* xia2: respect batch_range parameter in resolution determination
* xia2: silence xtriage output

* dials/xia2: dynamic masking of diamond anvil cells for DLS I19-2 high pressure experiments
* JMP improvements to mosaic spread estimate (342, 119)

* dxtbx: fixes for DLS I04 full CBF images
* _dials.find_spots_: add hot_mask_prefix option
* _dials.generate_mask_: add optional output.datablock parameter
* _dials.import_: fix geometry scan image_range override (337)
* _xia2_: run dials.generate_mask in DIALS pipeline
* _xia2_: avoid occasional pointless crash in small molecule mode (xia2/xia2115)

* dxtbx: Converted models into C++. Bug fixes for HDF5/Eiger files to correct a previously inverted axis.
* _dials.align_crystal_: numerous bug fixes and simplified output
* _dials.find_spots_: Correctly smooth histogram, 317
* _dials.geometry_viewer_: display of crystal basis vectors, and added fast, slow, normal vectors to panels in display
* _dials.image_viewer_: new mask generation tool; performance improvements
* _dials.import_: full specification of meta data from phil parameters; can now import data with different detector etc into same file
* _dials.index_: improvements to nearest neighbour analysis used in max_cell estimation (optionally choose between linear and logarithmic histogram binning)
* _dials.reciprocal_lattice_viewer_: reciprocal unit cell display
* _dials.refine_: equal shift constraints
* _dials.rl_png_: fix crash
* All dials programs: no longer attempt to read from STDIN when run on a terminal (326), generic performance improvements (292)

- fix _dials.reciprocal_lattice_viewer_ crash (313)

- _dials.export format=json_
- fix labels and ranges in _dials.report_ plots