Ignore target folder, add test folder to classpath
Add JDK logging config file to be used when running tests

Conflicts:
	.settings/org.eclipse.core.resources.prefs
Always use "explicit" nonce contained in GenericAEADCipher struct
when decrypting incoming DTLSCiphertext messages
Merge branch 'fix_explicit_nonce_handling' into user-principal-support

Conflicts:
	src/main/java/ch/ethz/inf/vs/scandium/dtls/Record.java