Merge tag 'v0.25.0' into archlinux

Alpha 25
Merge tag 'v0.26.0' into archlinux

Alpha 26.
Merge tag 'v0.27.0' into archlinux

Alpha 27
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.