Fix random failures of Split and Merge tests
first debug integration of newly trained cascade
integrated 128x256 scale
integrate 128x256 scale; remove log
xml for soft cascade
perf test
a bit refactored soft cascade
fix test for a new test data
fix soft scade xml
add two types of feature boxes support:
 - (left, top, width, height)
 - (left, top, right, bottom)
fix typo
fix python wrapping
fix test for new cascade
Merge pull request #303 from taka-no-me:fix_split_merge_test
Merge pull request #311 from cuda-geek:soft-cascade-refactoring-and-fixes