- Set API in version string to min version

The path in project.properties will require local overriding. I tried directly
referencing the SDK with ${sdk.dir} but the build fails with an absolute path
to a library.

Next step: Update the scripts and docs to point to
../i2p.i2p/ for everything.

  - Import the main_rules file and remove the copied rules
  - Set the version code and name in the apk badging
  - Build target is 8 to allow SD install, MIN-SDK is still 3
  - Fix NPE on new install
  - Remove some debug code from NBigI

  - More efficient build of i2p.jar and crypto.jar
  - More build fixes
  - Merge package configuration resource with configuration file on device if it exists
  - Add launcher icon, resized from installer/resources/eepsite.help/help/lib/itoopie.png
  - Start of a libjbigi build script
  - Increase min API to 3 so we can use JNI

- Fix RouterContext problem