Add some empty CMakeList.txt files

The top-level CMakeLists.txt expects to find these.
Link against the Python library on Windows only

While extension modules must be linked against the Python library on
Windows, the convention is not to link against it on platforms that
tolerate undefined symbols.
swap library order to address symbol resolution ordering issue in linking
updates to iOS build process

Conflicts:
	platforms/ios/build_framework.py
Force RTSP to use TCP
Uncomment out actual build lines
Adding some Axis flags so we don't build things we don't need.

Conflicts:
	CMakeLists.txt
Return python build step to opencv 2.4.6
Eliminated unsequenced assignments to temp3 from dpstereo.cpp.

They're unsequenced if CV_IMIN3 or CV_IMAX3 are invoked more than once
in a single expression.
Merge branch 'edge'