Update interaction_based_testing.rst

'>>' or '>>>' is a right-shift operator
switch back to spring 3.2.2 to make code compile
Merge pull request #15 from Opalo/patch-1

Update interaction_based_testing.rst
use current thread's contextClassLoader when parsing config script.

This enables a change in spock-grails-support
to fix http://code.google.com/p/spock/issues/detail?id=184
Merge branch 'groovy-1.8' into groovy-1.9