change Bind and Matcher so that a binding works properly with logicalXXX() as a method matcher

Signed-off-by: KUBO Atsuhiro <kubo@iteman.jp>
Merge pull request #27 from iteman/binding-pointcut-with-logicalXXX-as-method-matcher-fix

fix a problem that causes a binding not to work with logicalXXX() as a method matcher