Scaling factor and UI fixes 1.0.4, 1.1.3

New support for scaling and some UI bug fixes against both 1.0.x and 1.1.x.

• Option for graphics scaling factor.
• Remove auto scaling of web canvas to window; scaling factor replaces this.
• This also fixes mouse support, which was broken in the last patch release.
• Desktop-only fullscreen option.
• Make key bindings view save button visible.
• Fix table views (especially key bindings) so that index keys scroll with the data.
• Fix alphabet order for assigning target keys in key-based targeting.