Release 2.3.3

ABI summary:

• mirclient ABI unchanged at 10
• miral ABI unchanged at 4
• mirserver ABI unchanged at 54
• mircommon ABI unchanged at 7
• mirplatform ABI unchanged at 20
• mirprotobuf ABI unchanged at 3
• mirplatformgraphics ABI unchanged at 18
• mirinputplatform ABI unchanged at 8
• mircore ABI unchanged at 1
• mircookie ABI unchanged at 2
• mirwayland ABI unchanged at 2

Bugs fixed:

• Add app-env-amend configuration option. (Fixes: #1934)
• [miral-terminal] wait for gnome-terminal-server to exit
• Fix mirplatform.pc include dirs
• Add missing header for strdup
• [Wayland] Do not suppress motion events when relative motion is used (Fixes #1959)
• Fix protobuf symbols for Arch (Fixes FTBFS on Arch)