Changes for Version 2

Version 2 of RHT is significantly different from Version 1. Version 2 is not backwards compatible with version 1. It adds the following major features.

• Support for Microsoft Windows platforms
• Support for Event driven programming with the addition of Notification Callback on events.
• Added SPRDS_UNION semantics and made them the default
• SPRDS_INTERSECT (old semantics) initialization flag added
• Removed sprds_get_cpy()
• Renamed sprds_get_ref() to sprds_get()
• Added several informational get fcns for sprds_ref and snap_it
• Replaced pthread and stdutil thread calls with new StdUtil (version 1) thread fcns inside sprds package
• Changed parameter order to sprds_create
• Added a flags parameter to spsnap_init to allow optionally getting delete entries when using SPRDS_INTERSECT semantics