Bump version. rem_pio2 is no longer exported from openlibm

https://github.com/JuliaLang/julia/issues/5365

Make.inc

@@ -1,7 +1,7 @@
 # -*- mode: makefile-gmake -*-
 
 OS := $(shell uname)
-VERSION = 0.3
+VERSION = 0.4
 VERSION_SPLIT = $(subst ., , $(VERSION))
 DESTDIR =
 prefix = /usr/local