Declare vars as locally as possible

Remove unused var "total"
Declare vars as locally as possible

Issue #2114

This follows SURF changes in 1f261c2f

Also corrected some indexes to be size_t.

disabled the use of SSE4 instructions as well to make the code compatible with the old Intel and AMD chips

added test for the old cvHaarDetectObjects. disabled AVX optimization in haar.cpp. it should cover tickets #2534, #2591, #2669