ignore .class files
add run script to examples/
purge unneeded C test code
include a bunch of relevant files to test with
move format-code.sh to jni/ since it is only used there
fix tests in Eclipse: set path to libgnupg-for-java.so
update format-code.sh to get closest to current style

Running the original script made a lot of changes to the code, the edits to
the script caused the least amount of changes for me.
reformat all .c and .h files with updated format-code.sh
including emacs formatting commands at end of every code file

This makes emacs automatically setup the right code formatting when it
loads any of these files.