Better error messages for api_version mismatch. Also be a bit stricte…

…r about when to set the error, and the types of version numbers.

Better error messages for api_version mismatch. Also be a bit stricte…

…r about when to set the error, and the types of version numbers.

Better error messages for api_version mismatch. Also be a bit stricte…

…r about when to set the error, and the types of version numbers.

Moved find_library to inside _cwipc_dll_search_path collection so it …

…can do the right thing on Linux