Eliminate superclass callbacks

Service components don't need to call
super.onCreate() and super.onDestroy()
Provide Eclipse .project file for new plugin

This gives the openpgp-api-library an Eclipse
project name consistent with the names used for
the other plugins.  This helps with initial
project setup and avoids project naming collisions.
Avoid NPE in MessageOpenPgpView.updateLayout()

E/AndroidRuntime(24914): FATAL EXCEPTION: main
E/AndroidRuntime(24914): Process: com.fsck.k9, PID: 24914
E/AndroidRuntime(24914): java.lang.NullPointerException
E/AndroidRuntime(24914):    at org.openintents.openpgp.util.OpenPgpServiceConnection.<init>(OpenPgpServiceConnection.java:35)
E/AndroidRuntime(24914):    at com.fsck.k9.view.MessageOpenPgpView.updateLayout(MessageOpenPgpView.java:115)
E/AndroidRuntime(24914):    at com.fsck.k9.view.SingleMessageView.setMessage(SingleMessageView.java:623)
E/AndroidRuntime(24914):    at com.fsck.k9.fragment.MessageViewFragment$Listener$2.run(MessageViewFragment.java:602)
E/AndroidRuntime(24914):    at android.os.Handler.handleCallback(Handler.java:733)
E/AndroidRuntime(24914):    at android.os.Handler.dispatchMessage(Handler.java:95)
E/AndroidRuntime(24914):    at android.os.Looper.loop(Looper.java:136)
E/AndroidRuntime(24914):    at android.app.ActivityThread.main(ActivityThread.java:5081)
E/AndroidRuntime(24914):    at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(24914):    at java.lang.reflect.Method.invoke(Method.java:515)
E/AndroidRuntime(24914):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791)
E/AndroidRuntime(24914):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:607)
E/AndroidRuntime(24914):    at dalvik.system.NativeStart.main(Native Method)
Avoid StrictMode error in OpenPgpApi

E/StrictMode(9278): A resource was acquired at attached stack trace but never released. See java.io.Closeable for information on avoiding resource leaks.
E/StrictMode(9278): java.lang.Throwable: Explicit termination method 'close' not called
E/StrictMode(9278): 	at dalvik.system.CloseGuard.open(CloseGuard.java:184)
E/StrictMode(9278): 	at android.os.ParcelFileDescriptor.<init>(ParcelFileDescriptor.java:179)
E/StrictMode(9278): 	at android.os.ParcelFileDescriptor.<init>(ParcelFileDescriptor.java:168)
E/StrictMode(9278): 	at android.os.ParcelFileDescriptor.createPipe(ParcelFileDescriptor.java:362)
E/StrictMode(9278): 	at org.openintents.openpgp.util.ParcelFileDescriptorUtil.pipeFrom(ParcelFileDescriptorUtil.java:34)
E/StrictMode(9278): 	at org.openintents.openpgp.util.OpenPgpApi.executeApi(OpenPgpApi.java:222)
E/StrictMode(9278): 	at org.openintents.openpgp.util.OpenPgpApi$OpenPgpAsyncTask.doInBackground(OpenPgpApi.java:189)
E/StrictMode(9278): 	at org.openintents.openpgp.util.OpenPgpApi$OpenPgpAsyncTask.doInBackground(OpenPgpApi.java:1)
E/StrictMode(9278): 	at android.os.AsyncTask$2.call(AsyncTask.java:288)
E/StrictMode(9278): 	at java.util.concurrent.FutureTask.run(FutureTask.java:237)
E/StrictMode(9278): 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
E/StrictMode(9278): 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
E/StrictMode(9278): 	at java.lang.Thread.run(Thread.java:841)
Don't use enum ordinal as array index, v. 2

This revises commit 51aa34d per the GitHub comments therewith.
Clean up lint items

Eliminate unused variables/fields/imports
Eliminate unused variable & redundant call

There are no side effects.

The subsequent executeOpenPgpMethod() calls
getOpenPgpInputStream() which calls
buildText(false)