Adding mapping to enable Cmd+Opt+Left/Right to supplement Ctrl+PgUp/PgDn for browser tab navigation.
Shortcut is verified by testing to work on Firefox, Google Chrome and Opera in macOS, so it should be suitable for inclusion in Kinto.
Included are some line changes from PR #487, which should close that PR if this is merged.
On macOS the terminal, like a web browser, lets you "zoom" in and out with Cmd+Equal and Cmd+Minus. It doesn't force you to type Cmd+Shift+Equal to get to the "Plus" keycode on the Equal key. On Linux of course, terminals want you to use Ctrl+Shift+Equal (Plus) to zoom in (increase font size) and then Ctrl+Minus without the Shift key to decrease the font size (zoom out). This is very awkward.
Mapping RC-Minus to C-Minus in the termStr block instead of to C-Shift-Minus lets the user zoom in and out in terminals by just pressing the equivalent of Cmd-(Equal/Minus) keys, without ever worrying about the Shift key. Same as terminals in macOS, and GUI web browsers.
Since this is probably just one of the keys that was blanket remapped from RC to C-Shift, I don't know of any reason this should be harmful.
Adding a regex for variants of `qemu-system-.*` to remotes list to bypass Kinto mapping. This is working for me.
Variants I've seen on my system:
`qemu-system-i386`
`qemu-system-x86_64`
A snap package called Sosumi operates as a QEMU/KVM front end, and caused a problem because it wanted to see Control_L+Alt_L+G to let go of mouse and keyboard. This solves that problem.
Putting this in as disabled. It will need some logic in the installer to enable it if Neon is detected, and disable the `(gnome/kde)` line above it. But at least it will be there already, to be manually enabled if necessary.
See issue #477 for discussion.
Safari and Chrome/Chromium use Ctrl+Shift+N to open private/incognito windows. Firefox for some reason wants to use Ctrl+Shift+P. This makes Firefox respond to Ctrl+Shift+N the same way as Safari and the Chromes. Ctrl+Shift+P of course still works also.
No pre-existing action for Ctrl+Shift+N seems to exist in the current Firefox version. So no known conflict.
