bsc: document handover

Add chapter "Handover", explaining:
- intra- and
- inter-BSC handover,
- HO algorithm 1 and
- algorithm 2
- new neighbor configuration

Adjust copyright, add revision and add me as author.

Change-Id: I7afb3f66c98abda07fc8acc76e00c46091fe55e2
diff --git a/doc/manuals/osmobsc-usermanual.adoc b/doc/manuals/osmobsc-usermanual.adoc
index e3eadaf..0ec15e5 100644
--- a/doc/manuals/osmobsc-usermanual.adoc
+++ b/doc/manuals/osmobsc-usermanual.adoc
@@ -15,6 +15,8 @@
 
 include::chapters/counters.adoc[]
 
+include::chapters/handover.adoc[]
+
 include::../common/chapters/vty.adoc[]
 
 include::../common/chapters/logging.adoc[]