Updated to the major ASM 4.0 release, supporting Java 7 class format.
Plugin now requires Java 5. Still runs on Eclipse 3.6 (tested up to 3.7.1).
* New features for BCO view:
- added code highlighting (limited to the java code style), also in ASMifier mode
- added <Ctrl+Click> navigation to java types
- added javadoc hover for java types
- added opcode doc hover for opcodes
* Fix for BC reference view:
- in case nothing useful is selected, show the index page for all opcodes
* Smaller fixes