In Progress Migration to Java 1.8 (fixes #2260)

Working versions of java, python, and javascript modes using java 1.8. (fixes #2260)

Updated jars to latest eclipse version:
* org.eclipse.osgi_3.8.1.v20120830-144521.jar **---->** org.eclipse.osgi_3.10.0.v20140606-1445.jar
* jdi.jar (3.8.1)
* jdimodel.jar (3.8.1)
* ecj.jar (4.4)

TODO:
- [ ] fix find window
- [ ] fix pde x
- [ ] fix file not found error when exporting (doesn't seem to cause any problems)
- [ ] GenerativeDesign contributed library is now showing "invalid manifest" error