Groovy6499

See https://jira.codehaus.org/browse/GROOVY-6499
So what I removed from AutoCompletion were metaclass Methods and Methods inherited from java.lang.Object or groovy.lang.GroovyObject, unless the user had already typed the first 3 letters (configurable in Preferences).

before:

    groovy:000> class Foo{def foo(){}; def bar(){}}
    ===> true
    groovy:000> f = new Foo()
    ===> Foo@48c95aa2
    groovy:000> f.<tab>
    addShutdownHook(          any(                      any()                     asBoolean() ....

After:

    groovy:000> f.<tab>
    bar()   foo()

This is supposed to help programmers see business logic methods without obfuscation by standard methods.