Index: trunk/doc/developer/hid_remote/proto_high.html
===================================================================
--- trunk/doc/developer/hid_remote/proto_high.html	(revision 6307)
+++ trunk/doc/developer/hid_remote/proto_high.html	(revision 6308)
@@ -64,7 +64,7 @@
 Arguments:
 <ul>
 	<li> name: name of the layer (can be empty)
-	<li> id: unique group ID (decimal integer)
+	<li> id: unique group ID (decimal integer, may be large)
 	<li> flags: a list of 3 items: location, purpose and properties. Each item is a list of values (or an empty list).
 	<li> group: group ID; layers in the same group are turned on/off together and are considered to be on the same physical layer; -1 means not part of any group
 </ul>
@@ -76,7 +76,7 @@
 Creates the bottom assembly virtual layer with ID 16777226. It is not part of
 any layer group and is called "bottomassembly".
 
-<h3> setlg(group_id group_flags is_empty) </h3>
+<h3> setlg(group_id is_empty) </h3>
 Inform the client that the next set of drawing commands are for a specific
 layer group.
 <p>
@@ -83,8 +83,7 @@
 Arguments:
 <ul>
 	<li> group_id: unique ID of the layer group
-	<li> flags: TODO
-	<li> is_empty: 1 if the layer group may be empty, 0 if the layer is not empty
+	<li> is_empty: 1 if the layer group may be empty, 0 if the layer is not empty (TODO: this bit is not 100% reliable yet)
 </ul>
 
 <h3> makeGC() </h3>
Index: trunk/doc/license.html
===================================================================
--- trunk/doc/license.html	(revision 6307)
+++ trunk/doc/license.html	(revision 6308)
@@ -22,11 +22,32 @@
 <!--AUTO navbar end-->
 
 <H1> pcb-rnd - license </H1>
-Pcb-rnd is a Free Software, Open source, under the GPL version 2.
+Pcb-rnd is a Free Software, Open source, under the terms of GPL version 2.
 <p>
 Pcb-rnd started as a fork of gEDA/PCB thus inherited it's GPL2+ license.
 See file trunk/COPYING for more details on the license terms. Pcb-rnd
-incorporates a few mini-libs with various, GPL-compatible licenses.
+incorporates a few mini-libs with various, GPL-compatible licenses, mostly
+BSD, MIT and public domain.
+<p>
+<b>For users</b>: the resulting software is distributable under the GNU GPL version 2
+(or later versions), the usual GPL terms and conditions apply.
+<p>
+<b>Contribution:</b> by contributing, you agree to submit patches that are conforming
+to the license terms (e.g. don't copy random code from other projects). We
+are keeping track of copyright: each contributor holds the copyright for and
+is responsible for their part. Contributors agree to license their contribution
+under the same term as the subproject they are adding to, which is typically
+GPL2+ for core and plugins and utilities.
+<p>
+<b>Re-licensing under different conditions:<b> pcb-rnd's GPL2+ allows the user
+to upgrade to GPL3 or later versions of the GPL (as long as new versions
+don't contradict with the license of the mini-libs). It is not possible to
+change pcb-rnd's license to anything else unless all past developers agree
+(but there's not even a index of all the names!). It is possible to request
+relicensing of the files that are brand new in pcb-rnd (they are all marked
+in the copyright banner on the top of the file) - this requires the agreement
+of all copyright holders listed in the file, and wouldn't affect other files.
+Same rules apply for mini-libs.
 
 
 </body>