Added smile detector
Update samples/c/smiledetect.cpp

- Changed to floating neighbor maximum mode
- Fixed some previous errors.
Update samples/c/smiledetect.cpp

Fixed isdigit() Android build error
Added --regressions-only=X-FACTOR  option
Feature #2833 Sepia size in Image Manipulations demo implemented.
fix the mismatch of perf_test, add a performance sample for ocl module
Simplify the bind texture logic of interpolate frame function
remove the device specific logic
refactored gpu perf tests and fixed sanity tests
fixed gpu bitwise operations with scalars
fixed warp tests
fixed gpu HoughCircles test
Android tutorial updated
OpenCV version incremented;
New CvCameraViewListener interface description added.
Add option --with-score to summary.py to automatically classify speedups

Legend for new column is:
* FASTER - strong speedup
* faster - spedup is detected but it is unreliable
* <empty> - no change in speed
* slower - slowdown is detected but it is unreliable
* SLOWER - strong slowdown
fixing eclipse import errors
Merge pull request #561 from asmorkalov:android_tutorial_2_4_4_update
add CUDA_GENERATION macro
Merge pull request #564 from apavlenko:eclipse_import_fix
Merge pull request #565 from cuda-geek:auto-arch
Put the cl_image support detection in utils