Update Brackets.java

Fixed bug first spotted at ~~http://code.google.com/p/processing/issues/detail?id=1032~~ https://github.com/processing/processing/issues/1070#issuecomment-13355806 where brackets aren't seen directly after a slash.
An example that previously failed:
````Java
min(1, x/(1.0));
min(1, x /(1.0));
````