add api level 17 to javadoc filter and update version number

Change-Id: I278f796b3390e57f4309f215e4f37359a80f0e83

Android.mk

@@ -429,6 +429,7 @@ framework_docs_LOCAL_DROIDDOC_OPTIONS := \
     -since ./frameworks/base/api/14.txt 14 \
     -since ./frameworks/base/api/15.txt 15 \
     -since ./frameworks/base/api/16.txt 16 \
+    -since ./frameworks/base/api/17.txt 17 \
 		-werror -hide 113 \
 		-overview $(LOCAL_PATH)/core/java/overview.html
 
@@ -539,7 +540,7 @@ web_docs_sample_code_flags := \
 
 ## SDK version identifiers used in the published docs
   # major[.minor] version for current SDK. (full releases only)
-framework_docs_SDK_VERSION:=4.1
+framework_docs_SDK_VERSION:=4.2
   # release version (ie "Release x")  (full releases only)
 framework_docs_SDK_REL_ID:=1