fixed build with CUDA 5.5 on arm platforms
Add opencl implementation of Farnback optical flow.
Fix build errors
Fix white-spacing
Temporarily disable command queue release as it causes program hang at exit
OpenCV Library and Manager version incremented.

OpenCV Version 2.4.6;
OpenCV Manager Version 2.8;
Doc fixes.
dc1394-2: support for operation mode 1394b added
Merge remote-tracking branch 'remotes/upstream/2.4' into dc1394_2-1394b
Fix ocl::setBinaryDiskCache
Previously the function requires Info::Impl implicitly. A call will create
new Context this function which is not intended.
The properties are now moved to global scope to fix this issue.
Renew function logic.
Move function definition from header to cpp.
some accuracy fix of HOG
format the ocl's samples name
more fix to HOG
some tweaks to samples
Merge pull request #1054 from asmorkalov:opencv_version
changed contacts in tutorual
Added link to contribution process, updated formatting
Mentioned 2.4 and master branches
updated email address