Tidy up Bag and Vector, and make ProactorPoll use a vector

Signed-off-by: Rick Taylor <rick@tropicalstormsoftware.com>
Tidy up Queue

Signed-off-by: Rick Taylor <rick@tropicalstormsoftware.com>
A few more Vector improvements

Signed-off-by: Rick Taylor <rick@tropicalstormsoftware.com>
More iterator improvements!

Signed-off-by: Rick Taylor <rick@tropicalstormsoftware.com>