Tweak wording around packages to note support for iOS and Android. Rename Mac OS X to macOS

[Android and iOS] Update Mobile documentation

Testing section cleanup

Add prereqs to Android readme, and mention KMW for ios readme

[Web] Keyboard state cookie overwritten by first keyboard registration

Finnicky fix for iso8601 time to satisfy the demands of Keyman for iOS

[Android] Change parameter names for firebase logging

Rework the [Install into app] infrastructure and fix bugs

The `.` character isn't allowed in parameter names passed to Firebase analytics. This was flagging Firebase errors when trying to view the events in the Firebase console.

Replacing `cm.` with `cm_` works. (cm is just the naming convention I used for JS ConsoleMessage properties)

[iOS] Downloading legacy adhoc keyboard fixes

Improve logging in kmtip so we can track failure to activate more reliably

Fix broken link

Update desktop and developer history with recent PR changes

Test that project is present before attempting to check project options in build

Upload keyboard documentation to help.keyman.com

Don't product output js file if warnings are found and fail-on-warning is set

[Android] Log KMW console error to Crashlytics and reset to default keyboard

Rework test for virtual keys in mnemonic layouts. Still not completely supported but a step in the right direction