Simple Viewer GL v3.2.1

• fix(crash): crash when pressing key when cursor is outside window
• fix(cursor): checks cursor position on startup

Simple Viewer GL v3.1.12

• Compilation related fix.
• Added --class=name option.
• Multiple configuration directories support added.
• Wrong position hint removed.
• Build rules renamed.
• Error handling improved.

Simple Viewer GL v3.1.11

Wayland related fixes.

Simple Viewer GL v3.1.10

Added forgotten file src/version.h.