Tutorial to install CrashPlan (updated August 2016)

I'm running 4.2.28 on a Pro 6.

I've been using the Java 7 addon from RNSXtras for quite some time now. My CrashPlan 4.7 install tried to upgrade to 4.8 I believe on Sept 29. It tried to download the new JVM and was unable to because of the wget cert check issue. It filled the /usr/local/crashplan/upgrade folder with multiple attempts and filled my root volume. Luckily I was still able to boot up and SSH in. I modified .wgetrc according to a post I found and this page (I can't find the forum post anymore).

http://www.elftronix.com/how-to-automatically-skip-wget-ssl-certificate-check/

I managed to delete everything in the upgrade folder to reclaim the root volume space. After making that change to wget, CrashPlan tried to upgrade again. This time it was able to download the Java 1.8 and it successfully upgraded to 4.8. JAVACOMMON in my install.vars is now pointing to /usr/local/crashplan/jre/bin/java.

Everything seems to be working fine. I'm guessing parts of this have already been posted somewhere on the forums but I thought I would just post my experience in case anyone runs into the same problem.

Can I assume there is no need for the Java 1.7 addon from RNSXtras anymore?