[Developer] Context help screen was not showing on startup in 12.0.39 (regression).

[Developer] .js files should be opened in Keyman Developer, not executed...

[Developer] Set the package version when building kmlmx during Developer build.

[Developer] Add a Welcome page to the workflow for Keyman Developer.

[Android] Guard against condition when `language.keyboards` entries don't exist

[Android] Fix two crashes reported in Crashyltics

[Android] Improves keyboard swap stability

[Developer] Fix some of the issues with Context Help, and address one specific topic - touch layout editor.

[Developer] Support colour log messages and cleanup logging.

[Developer] Remove legacy 'Install keyboard' link in web test and cleanup look somewhat.

[Developer] Add -lexical-model command line option for building lexical model template projects to kmconvert.

Fixes crashlytics issue in [KMTextView](https://console.firebase.google.com/u/0/project/kmapro-ee779/crashlytics/app/android:com.tavultesoft.kmapro/issues/5c48b419f8b88c2963468341?time=last-seven-days&sessionId=5D8A6E990027000120BCBEDF388131A9_DNE_0_v2)

[Developer] Add a Welcome page to the workflow for Keyman Developer and remove the now-redundant Splash screen. Fixes #2123.

[Web] Toolbar UI hack/tweaks for better keyboard accessibility