add X-Frame-Options to console headers

...2psnark/java/src/org/klomp/snark/web/I2PSnarkServlet.java

apps/i2ptunnel/jsp/edit.jsp

apps/i2ptunnel/jsp/index.jsp

apps/i2ptunnel/jsp/wizard.jsp

.../routerconsole/java/src/net/i2p/router/web/CSSHelper.java

apps/routerconsole/jsp/css.jsi

apps/susidns/src/jsp/addressbook.jsp

apps/susidns/src/jsp/config.jsp

apps/susidns/src/jsp/details.jsp

apps/susidns/src/jsp/index.jsp

apps/susidns/src/jsp/subscriptions.jsp

apps/susimail/src/src/i2p/susi/webmail/WebMail.java

history.txt

router/java/src/net/i2p/router/RouterVersion.java