docs: Prepare release notes for version 0.3.0

Change-Id: If0ae14cbf97ee3d9b92a3467d0b6592c10e66698
Refs: #2462, #2352, #2209
diff --git a/wscript b/wscript
index 53edd43..b5b601c 100644
--- a/wscript
+++ b/wscript
@@ -23,7 +23,7 @@
 NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
 """
 
-VERSION = "0.2.0"
+VERSION = "0.3.0"
 APPNAME = "nfd"
 BUGREPORT = "http://redmine.named-data.net/projects/nfd"
 URL = "http://named-data.net/doc/NFD/"