Parser now creates version-specific parser table pickles.
datastructuretools is now cross-version compatible.
spannertools is now cross-version compatible.
Adjusted IOManager.count_function_calls() test.
Cleaned up documentationtools.
Removed all @apply decorators in handlertools.
Adjusted StringIO imports in experimental.
Removed more @apply decorators in experimental.
Made import statements in experimental cross-version compatible.