module-fileread: Fixed NPE

Initializing the Settings from ModuleService's constructor is a bad
idea, since the context, or better the ContextWrapper, won't have a base
context set. This seems to happen later on, at least it's set in
onCreate() where we now init Settings.

The captured NPE:

Caused by: java.lang.NullPointerException
	at android.content.ContextWrapper.getPackageName(ContextWrapper.java:135)
	at android.preference.PreferenceManager.getDefaultSharedPreferencesName(PreferenceManager.java:371)
	at android.preference.PreferenceManager.getDefaultSharedPreferences(PreferenceManager.java:366)
	at org.projectmaxs.module.fileread.Settings.<init>(Settings.java:51)
	at org.projectmaxs.module.fileread.Settings.getInstance(Settings.java:40)
	at org.projectmaxs.module.fileread.ModuleService.<init>(ModuleService.java:57)
Formated AndroidManifeest.xml files

This is a format only change. It does not introduce any semantic changes
in the Manifests.
Fixed Android Issue #61710 with build tools ver19

If an Android project is build with build tools version 19 and the
targetSdkVersion value in the Manifest is not the same as
'target=android-<value>', then building will end in a
BufferOverflowException.

This commit sets the value in both files to 19.

References:
- https://code.google.com/p/android/issues/detail?id=61710
- http://stackoverflow.com/a/19952656/194894
scripts/setTargetSDK.sh added

Utility to set the target SDK value in AndroidManifest.xml *and*
project.properties.