Documentation for version 1.0

Final updates to readme.md and change-log.md for ARM Trusted
Firmware version 1.0. Also increment the version in the Makefile.

Change-Id: I00fe1016c8b936834bbf7bbba7aab07f51261bbb
diff --git a/Makefile b/Makefile
index 8c97b49..ac66642 100644
--- a/Makefile
+++ b/Makefile
@@ -31,8 +31,8 @@
 #
 # Trusted Firmware Version
 #
-VERSION_MAJOR		:= 0
-VERSION_MINOR		:= 4
+VERSION_MAJOR		:= 1
+VERSION_MINOR		:= 0
 
 #
 # Default values for build configurations