Pre-release version bump.

Also delete non-existant header files from pixman/Makefile.am
diff --git a/configure.ac b/configure.ac
index 05da7ca..7352c27 100644
--- a/configure.ac
+++ b/configure.ac
@@ -54,7 +54,7 @@
 
 m4_define([pixman_major], 0)
 m4_define([pixman_minor], 15)
-m4_define([pixman_micro], 7)
+m4_define([pixman_micro], 8)
 
 m4_define([pixman_version],[pixman_major.pixman_minor.pixman_micro])
 
diff --git a/pixman/Makefile.am b/pixman/Makefile.am
index 84106c3..863caa3 100644
--- a/pixman/Makefile.am
+++ b/pixman/Makefile.am
@@ -58,8 +58,7 @@
 if USE_MMX
 noinst_LTLIBRARIES += libpixman-mmx.la
 libpixman_mmx_la_SOURCES = \
-	pixman-mmx.c \
-	pixman-mmx.h
+	pixman-mmx.c
 libpixman_mmx_la_CFLAGS = $(DEP_CFLAGS) $(MMX_CFLAGS)
 libpixman_mmx_la_LIBADD = $(DEP_LIBS)
 libpixman_1_la_LDFLAGS += $(MMX_LDFLAGS)
@@ -71,7 +70,6 @@
 noinst_LTLIBRARIES += libpixman-vmx.la
 libpixman_vmx_la_SOURCES = \
 	pixman-vmx.c \
-	pixman-vmx.h \
 	pixman-combine32.h
 libpixman_vmx_la_CFLAGS = $(DEP_CFLAGS) $(VMX_CFLAGS)
 libpixman_vmx_la_LIBADD = $(DEP_LIBS)
@@ -82,8 +80,7 @@
 if USE_SSE2
 noinst_LTLIBRARIES += libpixman-sse2.la
 libpixman_sse2_la_SOURCES = \
-	pixman-sse2.c \
-	pixman-sse2.h
+	pixman-sse2.c
 libpixman_sse2_la_CFLAGS = $(DEP_CFLAGS) $(SSE2_CFLAGS)
 libpixman_sse2_la_LIBADD = $(DEP_LIBS)
 libpixman_1_la_LDFLAGS += $(SSE2_LDFLAGS)