added a new Activity for displaying info about TLS
a new Activity for viewing Providers
target a lower API level (Android 4.0)
add copy of GPLv3 to repo

Although the original version of this app has no copyright or license
info in the source tree, the project page indicates it is GPLv3:

https://code.google.com/p/enh/

So I'm adding a copy of the license to my GitHub repo just to clarify
things.
add README; try to make it clear this is a modified version of app
evil JDK 7 jarsigner needs extra args to make Android happy

without the magic extra arguments, we get:

09-03 01:32:18.752: W/PackageParser(772): java.lang.SecurityException: META-INF/ANDROID-.SF has invalid digest for res/layout/main.xml in /data/app/vmdl-971763522.tmp
09-03 01:32:18.752: W/PackageParser(772): 	at java.util.jar.JarVerifier.invalidDigest(JarVerifier.java:131)
09-03 01:32:18.752: W/PackageParser(772): 	at java.util.jar.JarVerifier.verifyCertificate(JarVerifier.java:350)
09-03 01:32:18.752: W/PackageParser(772): 	at java.util.jar.JarVerifier.readCertificates(JarVerifier.java:258)
09-03 01:32:18.752: W/PackageParser(772): 	at java.util.jar.JarFile.getInputStream(JarFile.java:378)
09-03 01:32:18.752: W/PackageParser(772): 	at android.content.pm.PackageParser.loadCertificates(PackageParser.java:462)
09-03 01:32:18.752: W/PackageParser(772): 	at android.content.pm.PackageParser.collectCertificates(PackageParser.java:653)
09-03 01:32:18.752: W/PackageParser(772): 	at com.android.server.pm.PackageManagerService.installPackageLI(PackageManagerService.java:9646)
09-03 01:32:18.752: W/PackageParser(772): 	at com.android.server.pm.PackageManagerService.access$2100(PackageManagerService.java:212)
09-03 01:32:18.752: W/PackageParser(772): 	at com.android.server.pm.PackageManagerService$6.run(PackageManagerService.java:7518)
09-03 01:32:18.752: W/PackageParser(772): 	at android.os.Handler.handleCallback(Handler.java:725)
09-03 01:32:18.752: W/PackageParser(772): 	at android.os.Handler.dispatchMessage(Handler.java:92)
09-03 01:32:18.752: W/PackageParser(772): 	at android.os.Looper.loop(Looper.java:137)
09-03 01:32:18.752: W/PackageParser(772): 	at android.os.HandlerThread.run(HandlerThread.java:60)