Turns out, you can't use preprocessor directives inside macro arguments.
Who'd have thought?

Now it allows choosing between arbitrary implementation variants.

There is no WIN64 defined in the environment.

Simle Java test for computeCorrespondEpilines added.

Otherwise, Excel ignores line breaks in them.

Updated iOS camera. Added rotation flag. Added functions to lock/unlock focus, white balance and exposure.

The matrix g  can have CV_32F or CV_64F type,  but g.at uses only float template.
This fix adds specialization for double type.

Revise some descriptions of the enums.