Fixed issue with parent-child switch condition with different arguments.

Previously, a parent switch with different conditional arguments from
the child would always fail due to the check only taking into account
a single input.  This patch moves the check into Manager.
Fixed issue with parent-child switch condition with different arguments.

Previously, a parent switch with different conditional arguments from
the child would always fail due to the check only taking into account
a single input.  This patch moves the check into Manager.
Merge branch 'fix-parent-child-arguments' of https://github.com/tail/gutter into fix-parent-child-arguments

Conflicts:
	tests/test_integration.py
Merge pull request #6 from tail/fix-parent-child-arguments

Fixed issue with parent-child switch condition with different arguments.