Resolve "msgpack / rpc error with xia server"

Closes #1644

See merge request !2401

bliss.dialogs: introduced a generalized way to add dialogs code to bliss

Closes #1580

See merge request !2367

[flint] Rework bliss.common.plot

See merge request !2369

Resolve "keithley communication  configuration problemos"

Closes #1637

See merge request !2399

- You should not create them on your own

moco: proper map registration of _cnx

See merge request !2398

modify outbeam to allow configure some of the fields, no case sensitive, add inbeam

See merge request bliss/bliss!2394

- added menu for: measurementgroups, ascan, wago, transfocator, white_beam_attenuator
- updated menu for: multiplexer, lima

- shell.dialog.helpers: added `dialog` decorator to register classes and
    `find_dialog` to retrive proper dialog
    added helpers for dialogs displaying (in_frange and list_axes)
- shell.standard: added menu function

Merge branch '1634-scan-execution-exceptions-happening-during-scan-can-be-shadowed-by-exceptions-in-scan-preset' into 'master'

Resolve "Scan execution: exceptions happening during scan can be shadowed by exceptions in Scan preset"

Closes #1634

See merge request bliss/bliss!2386

setup.py: removed pyyaml

See merge request bliss/bliss!2393

Resolve "Wago: problem with negative value for thermocouples"

Closes #1635

See merge request bliss/bliss!2391

Speedgoat motor

See merge request bliss/bliss!2390

bliss administrator authored May 12, 2020 and Cyril Guilloud committed May 13, 2020

- blackify

bliss administrator authored Apr 17, 2020 and Cyril Guilloud committed May 13, 2020

instanciate the speedgoat controller in the __init__ class of the Motor controller to be sure to get the object

bliss administrator authored Apr 17, 2020 and Cyril Guilloud committed May 13, 2020

Seb correction because reference object in the initialize() method of MotorController are not instanciated

[writer] skip reference saving when paths are equal instead of checking existence

See merge request bliss/bliss!2387

treelib: fixed version for incompatibility of the newer treelib package

See merge request bliss/bliss!2385