Add a couple of missing files

android/experiments/DocumentLoader/build.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project name="LibreOfficeDocumentLoader" default="help">
+
+    <!-- The local.properties file is created and updated by the 'android' tool.
+         It contains the path to the SDK. It should *NOT* be checked into
+         Version Control Systems. -->
+    <loadproperties srcFile="local.properties" />
+
+    <!-- The ant.properties file can be created by you. It is only edited by the
+         'android' tool to add properties to it.
+         This is the place to change some Ant specific build properties.
+         Here are some properties you may want to change/update:
+
+         source.dir
+             The name of the source directory. Default is 'src'.
+         out.dir
+             The name of the output directory. Default is 'bin'.
+
+         For other overridable properties, look at the beginning of the rules
+         files in the SDK, at tools/ant/build.xml
+
+         Properties related to the SDK location or the project target should
+         be updated using the 'android' tool with the 'update' action.
+
+         This file is an integral part of the build system for your
+         application and should be checked into Version Control Systems.
+
+         -->
+    <property file="ant.properties" />
+
+    <!-- The project.properties file is created and updated by the 'android'
+         tool, as well as ADT.
+
+         This contains project specific properties such as project target, and library
+         dependencies. Lower level build properties are stored in ant.properties
+         (or in .classpath for Eclipse projects).
+
+         This file is an integral part of the build system for your
+         application and should be checked into Version Control Systems. -->
+    <loadproperties srcFile="project.properties" />
+
+    <!-- quick check on sdk.dir -->
+    <fail
+            message="sdk.dir is missing. Make sure to generate local.properties using 'android update project'"
+            unless="sdk.dir"
+    />
+
+
+<!-- extension targets. Uncomment the ones where you want to do custom work
+     in between standard targets -->
+<!--
+    <target name="-pre-build">
+    </target>
+    <target name="-pre-compile">
+    </target>
+
+    /* This is typically used for code obfuscation.
+       Compiled code location: ${out.classes.absolute.dir}
+       If this is not done in place, override ${out.dex.input.absolute.dir} */
+    <target name="-post-compile">
+    </target>
+-->
+
+    <!-- Import the actual build file.
+
+         To customize existing targets, there are two options:
+         - Customize only one target:
+             - copy/paste the target into this file, *before* the
+               <import> task.
+             - customize it to your needs.
+         - Customize the whole content of build.xml
+             - copy/paste the content of the rules files (minus the top node)
+               into this file, replacing the <import> task.
+             - customize to your needs.
+
+         ***********************
+         ****** IMPORTANT ******
+         ***********************
+         In all cases you must update the value of version-tag below to read 'custom' instead of an integer,
+         in order to avoid having your file be overridden by tools such as "android update project"
+    -->
+    <!-- version-tag: 1 -->
+    <import file="${sdk.dir}/tools/ant/build.xml" />
+
+    <!-- Re-define the "-package-resources" target to not compress resources -->
+
+    <target name="-package-resources" depends="-crunch">
+        <!-- only package resources if *not* a library project -->
+        <do-only-if-not-library elseText="Library project: do not package resources..." >
+            <aapt executable="${aapt}"
+                    command="package"
+                    versioncode="${version.code}"
+                    versionname="${version.name}"
+                    debug="${build.is.packaging.debug}"
+                    manifest="AndroidManifest.xml"
+                    assets="${asset.absolute.dir}"
+                    androidjar="${android.jar}"
+                    apkfolder="${out.absolute.dir}"
+                    nocrunch="${build.packaging.nocrunch}"
+                    resourcefilename="${resource.package.file.name}"
+                    resourcefilter="${aapt.resource.filter}"
+                    projectLibrariesResName="project.libraries.res"
+                    projectLibrariesPackageName="project.libraries.package"
+                    previousBuildType="${build.last.target}"
+                    buildType="${build.target}">
+                <res path="${out.res.absolute.dir}" />
+                <res path="${resource.absolute.dir}" />
+                <nocompress /> <!-- forces no compression on any files in assets or res/raw -->
+                <!-- <nocompress extension="xml" /> forces no compression on specific file extensions in assets and res/raw -->
+            </aapt>
+        </do-only-if-not-library>
+    </target>
+
+</project>

android/experiments/DocumentLoader/project.properties

+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+#
+# This file must be checked in Version Control Systems.
+#
+# To customize properties used by the Ant build system use,
+# "ant.properties", and override values to adapt the script to your
+# project structure.
+
+# Project target.
+target=android-14