Merge tag 'v0.25.0' into archlinux

Alpha 25
Merge tag 'v0.26.0' into archlinux

Alpha 26.
Update mac build scripts
Fix LTO compilation
Fix a very stupid typo
Fix Cmd_RemoveCommandByFunc
Call FS::Initialize so the VM filesystem is intialized on VM startup
Fix /listmaps so it reports all availble maps instead of just the currently loaded map
Merge tag 'v0.27.0' into archlinux

Alpha 27
Bump version.
Force vm_game=2 in debian/unvanquished-server.default.
Merge branch 'master' into gameplay/testing
Debian client launcher script: set vm_game=2.
Fix some broken use of strncat.
Fix some errors found by coverity

Also fixed some indentation
Merge branch 'archlinux'
Add support for multi-part IPC messages
Fix a warning
Fix NaCl build
Set vm_game to 2 (TYPE_NATIVE_EXE) by default.

Revert Debian changes which set this by other means.