removed rarely used fixed_size parameter from AutoBuffer type, added optional AutoBuffer* but to cvarrToMat in order to speedup CvSeq->Mat conversion; finished conversion of convex hull and related functions to C++

 - (left, top, width, height)
 - (left, top, right, bottom)

This fixes java tests failing with new jpeg versions

This fixes random failures in Java wrappers.

Sometimes information about dependencies causing disabling were loosed and it
was not possible to correctly display these dependencies in status report

Invalid links and refences fixed.
SpaeseMat class documentation updated.