Documentation for version 1.1

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

Change-Id: Ib001a6ec9a9c570985841d06f0ff80ed76c2996b
diff --git a/Makefile b/Makefile
index 9d4206c..aa5880e 100644
--- a/Makefile
+++ b/Makefile
@@ -32,7 +32,7 @@
 # Trusted Firmware Version
 #
 VERSION_MAJOR		:= 1
-VERSION_MINOR		:= 0
+VERSION_MINOR		:= 1
 
 #
 # Default values for build configurations