Add LAN discovery test; remove bootstrap test.
Compile without exceptions and RTTI.

Saves 10% object code size.
Add more tests for bad bootstrap arguments.
Merge pull request #11 from pippijn/master

LAN discovery test + no-rtti and no-exceptions
Javadoc fixes and CMake javadoc building

Fix some issues with the javadoc (missing periods after sentence etc).
Passing -DBUILD_JAVADOC=ON to CMake will result in the javadoc being built after compilation of the java code.
Fix javadoc for validatePublicKey