prepare 3.4.2

extra/CHANGES.txt

@@ -1,3 +1,12 @@
+2017-03-20: 3.4.2
+
+	Bugfixes:
+
+	cpp : fixed issue with @:native names being prefixed with :: (#6086)
+	cpp : fixed issue with return type handling (#6103)
+	cpp : fixed inaccurate line numbers that threw off debugging
+	php7 : fixed generation of `[][0]` constructs (#6090)
+
 2017-03-17: 3.4.1
 
 	New features:

src/globals.ml

@@ -20,7 +20,7 @@ type platform =
 	| Python
 	| Hl
 
-let version = 3401
+let version = 3402
 let version_major = version / 1000
 let version_minor = (version mod 1000) / 100
 let version_revision = (version mod 100)