* [Companion] Change logical switch abbreviations to "LS##" in Source/Switch selection lists.
* [LogicalSwitchesPanel] Normalize LS name label.
* We had decided on "Lxx"
* Match firmware side
* ARM wasn't using the translations
* Update strhelpers.cpp
* Implement setCurve for lua
* Bug fixes after actual testing of API
* Fix documentation
* Even more error checking
* Add example code how to use this function
* Silence gcc warnings
* Drop points and start array index at 1 and note about wrong index in getCurve
* Add standard example
* Fixes
* Don’t use an invalid number in example
* fix missing 0
Extraneous semicolon results in an error saying: `invalid key/value pair in
file /lib/udev/rules.d/45-companion22-taranis.rules on line 1, starting
at character 83 (';')`
* [Companion] On first use of Companion show preferences dialog and new welcome message (closes#4731); Improve detection of new version upgrade & reformat message; Add download link URL to Linux update notice (closes#4774); Fix issue with leftover top-level settings categories when checking for older versions which don't exist; Introduce basic structure for warnings/messages to be suppressed by user preferences (eg. "don't show this message again" option).
* Welcome msg typo fix.
* [Companion] Re-format Inputs list to format input name consistently with rest of UI; Add leading zeros to RawSource numbers in names; Show custom channel name in MixerDialog.
* [Companion] Remove colon separator between input number and custom name.
* Fix segfault when no model pointer is passed to RawSource::toString() (problem was only on this branch).
* Generated new French .ts file.
* Update French translation concerning the new SD sync mechanism.
* Skip must be translated as "Ignorer", not "Sauter".
* French mistake.
* Complete re-write of SyncProcess, now more robust, UI-independent, runs in own thread, large speed boost;
* Use file hash comparisons instead of byte-level compare with string methods (probable fixes for #4837 and #4848);
* New pre-sync options dialog with selectable folders and other settings (settings are remembered until app exit);
* Option to choose sync direction(s) (up/down/bi) and the order in which bi-directional sync runs;
* Option to choose file comparison mode (timestamp/hash/both) or force overwrite (for one-way sync);
* Option to set a maximum file size to copy;
* Option to do a test run w/out actually copying any files;
* Better reporting of progress, total counts (copied/updated/skipped), and errors, with color coding;
* Much more reliable to cancel long-running/hung copy process;
* ProgressWidget can now display rich-text in the text browser, added some new functions for usage;
* Misc. small layout tweaks to ProgressDialog and ProgressWidget to make them behave/look better;
