Bug fix for type checking checkcast bytecodes.
The type checker was checking the types for checkcast bytecode the wrong
way around, and this was causing type checking to fail incorrectly.
Added support for wide load/store instructions.
Previously, load/store instructions on local variables whose index was
larger than 255 were not translated correctly.  This is because such
instructions require the WIDE bytecode to be used as a prefix.
Very minor update as I move Jasm towards being the first WyCC plugin.
Some more little tweaks related to the switch to being a wycc plugin.
Updating build.xml file
Added initial plugin activator.
Plugin activator now registers content type.
very minor
Updated plugin identifier.
Minor tweak to ensure content type is registered correctly.
Updated to reflect changes to the PluginContext class.
Lots of refactorings
Minor update related to previous refactoring of wycc into JPlug.
Updated the activator to add appropriate extension points.
Merge branch 'jasm-plugin' of github.com:Whiley/Jasm into jasm-plugin