Doc: embed styles inside doc versions index page

See merge request !2317

changed message for gain: (0-10) -> (3-10)

See merge request !2270

Pm600 controller various fixes

See merge request !2316

# This is the 1st commit message:

PM600 fix:

* motion.target_pos converted to int()
* do not send ST (stop) command to controller if already stopped
* trajectories added self.profile_mr_list and self.sequence_dict to prepare for checking if programming a trajectory is necessary
* do not read back from controller when issuing SX command

# The commit message #2 will be skipped:

# PM600.py do not send ST (stop) command to controller if already stopped

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# pm600 trajectories added self.profile_mr_list and self.sequence_dict to prepare for checking if programming a trajectory is necessary

# The commit message #4 will be skipped:

# pm600.py to not read back from controller when issuing SX command

# The commit message #5 will be skipped:

# pm600.py blackified

# The commit message #6 will be skipped:

# pm600.py some cosmetics changes in __info__() and blackified

Resolve "Search in documentation is broken"

Closes #1576

See merge request !2315

Resolve "protect config objects in repl"

Closes #1465

See merge request !2194

Scan speed opimization

Closes #1553 and #1556

See merge request !2287

BeaconObject property_setting setter not working at first call

Closes #1574

See merge request !2310

When redefined property function name get name of
the method instead of the property name.

As it time consuming, avoid to do it if not necessary.

This was changing when changing name from _data to _struct :-(

add missing initialisation of self.conversion_factor = 1

See merge request !2314

mca: move data reading loop on server side.

See merge request !1914

Resolve "setup.py do not install bliss.shell.dialogs.controller files"

Closes #1572

See merge request !2308

Resolve "--debug option should enable ERROR_REPORT.expert_mode"

Closes #1527

See merge request !2305

Update CHANGELOG.md

See merge request !2304

read_retries and trig_readout_keep_first_point

See merge request !2303

*retries 5 times reading of point in case of error
*do not remove first point
*doc: properties skeleton
*doc: classes diagram

* Change keep_first_point attribute by read_all_triggers and add it as
a parameter for master and slave acquisition devises with default at
'False' to keep backward compatibility

Multiple doc version index: add hint for the latest documentation available

See merge request !2189

Resolve "bad user_name display in scan_display F5"

Closes #1568

See merge request !2299