[nautilus] Add COPYING.EXTENSIONS clarifying some extension license issues

[Alexander Larsson <alexl src gnome org>]

commit 7d9b6812d006d9aeecfb33d072cb382184fb901b
Author: Alexander Larsson <alexl redhat com>
Date:   Wed May 27 11:05:56 2009 +0200

    Add COPYING.EXTENSIONS clarifying some extension license issues
---
 COPYING.EXTENSIONS |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/COPYING.EXTENSIONS b/COPYING.EXTENSIONS
new file mode 100644
index 0000000..22b47e6
--- /dev/null
+++ b/COPYING.EXTENSIONS
@@ -0,0 +1,10 @@
+Nautilus extensions link against the libnautilus-extenstions library which is
+is under the LGPL license. However, they also get loaded into the main
+nautilus program which is licensed under the GPL. So, extensions should not
+be incompatible with the LGPL or GPL.
+
+Some extensions are GPL but use some IPC mechanism like dbus to talk to a
+potentially non-GPL application. This is actually not such a bad design in
+general if your extension is doing a lot of work, as running as a nautilus
+extension with all its issues (no synchronous i/o, can't control of the
+context your code runs in, etc) can be kind of a pain.