rectangle function utilizes two cvpoints that are top-left, bottom-right
copy, set, mean with mask operations

methods with binary masks applied. created new entry points rather than
modifying existing methods to avoid compat issues
Merge pull request #140 from coolblade/master

fixed a bug where minAreaRect c++ function was pointing at BoundingRect ...
Merge pull request #137 from jhludwig/mask-operations

copy, set, mean with mask operations
Merge pull request #135 from ytham/master

rectangle function utilizes two cvpoints that are top-left, bottom-right