add boost_color.rst
Add doc for boost color function
add example
replace if-else parameters verification with CV_Assert
remove dummy sepia test
add test for improper arguments in sepia function
correct coding style a little bit
edit sepia test to fix clang warnings
Correct documentation, rename function
add macros to test if expected error is thrown
Merge pull request #33 from druzhkov-paul/sepia_asserts

change verification of parameters and mechanism of failures testing
Merge pull request #29 from stragger/boost_color_documentation

"Boost color" filter documentation
add documentation for glow function
fix list
fix error with equation
fix list