added failing test for nested object in uri.paramify

uri.paramify should handle nested objects too.
fixes #18: recursive uri.paramify() also added "index" option to created arrays with numeric indices
removed 2 useless var declarations in uri.paramify()
#18: uri.paramify() now recursively paramifies arrays if index option is enabled
Merge branch 'paramify-recursive'

Conflicts:
	test/uri.js