bump version; update news

cpsievert · cpsievert · commit 283950b346a1 · 2016-04-18T14:08:07.000+10:00
diff --git a/DESCRIPTION b/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: plotly
 Title: Create Interactive Web Graphics via 'plotly.js'
-Version: 3.4.14
+Version: 3.4.15
 Authors@R: c(person("Carson", "Sievert", role = c("aut", "cre"),
     email = "cpsievert1@gmail.com"),
     person("Chris", "Parmer", role = c("aut", "cph"),
diff --git a/NEWS b/NEWS
@@ -1,3 +1,9 @@
+3.4.15 -- 18 Apr 2016
+
+BUGFIX:
+
+The alpha in geom_smooth was incorrectly inheriting from other layers. See #551.
+
 3.4.14 -- 15 Apr 2016
 
 CHANGES:
