added script for kdoc upload to github pages to fix KT-1450

.gitignore

@@ -13,3 +13,4 @@ PluginVerifier
 tmp
 *TestMy.java
 .*.swp
+gh-pages

build.xml

@@ -131,6 +131,16 @@
             <arg value="-docOutput"/>
             <arg value="${output}/apidoc/stdlib"/>
         </java>
+
+        <fail message="No stdlib API docs generated.">
+            <condition>
+                <not>
+                    <resourcecount count="1">
+                        <fileset id="fs" dir="${output}/apidoc/stdlib" includes="index.html"/>
+                    </resourcecount>
+                </not>
+            </condition>
+        </fail>
     </target>
 
     <target name="compileTestlib" depends="compileKunit">

updatedoc.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+# generates the API docs and uploads them to github pages
+# for help on github pages see: http://pages.github.com/
+
+# TODO can we fail the build if the docs are not created?
+ant doc || exit $?
+
+echo "Cloning/pulling latest gh-pages branch"
+
+git clone -b gh-pages git@github.com:JetBrains/kotlin.git gh-pages
+cd gh-pages
+git pull || exit $?
+rm -rf apidoc/stdlib/*
+cp -r ../dist/apidoc/* apidoc
+git add apidoc || exit $?
+git commit -m "latest apidocs" || exit $?
+git push || exit $?
+
+echo "Updated github pages for apidocs"