Some fixes for incorrectly documented parameters identified by rst_parser.py (Bug #1205)
moved iOS part to platforms folder
Replaced the semi-public CV_PARALLEL_FRAMEWORK macro with a function.

That way, core/internal.hpp doesn't have to depend on cvconfig.h, which we
don't ship.
Update Info.plist.in
Merge pull request #1021 from alekcac:platforms
Merge pull request #1035 from SpecLad:cv-concurrency
Merge pull request #1002 from asmorkalov:doc_warning_fix