fix the dispose related issues

[ashkan-saeedi-mazdeh]

There is an issue regarding the way that library is being disposed which cases not all tests to run with each other and after first silo shuts down, the library is not usable in the same application. the issue doesn't exist in a real application since after a silo shutsdown/crashes , the library will be reinitialized in a new application.

[ashkan-saeedi-mazdeh]

@MikeGoldsmith Did you check if tests run correctly on CI server or for now we skip tests there?