Changed class structure to OpenCV structure, using an 'abstract interface - hidden implementation concept'.

Created nested namespace 'plot' inside namespace 'cv'. Removed methods 'show' and 'save'. Removed highgui dependency.

fix missing delete[] calls in or_mnist.cpp

Java and python wrappers for contrib modules

Function cuda::integral() does not require an extra buffer any more.

Remove algorithm factory

contrib_world module

updating github documentation structure

Fixed cvv module build

- updated header inclusions
- added export instruction to public methods
- fixed some small problems

added information about the patents related to the surface matching algorithm

Disable some modules for iOS framework world build

fix memory leak in surface matching module

Fixes required to compile MATLAB bindings

Fix for Bug 4074. Both conditions of if are same

Fix typo in ERFilter