Right now, this:
.. links the framework statically into the program.
There needs to be a similar directive that will install the framework into the "Embedded Binaries" section of the Xcode project. Frameworks that are installed in the "Embedded Binaries" section are dynamically loaded when needed by your iOS program.
Two ways this can be done:
1. Overload the "custom" attribute (icky but we won't have to introduce a new attribute) to be a string, and the new value would be "dynamic"
2. Have a new "dynamic" attribute (boolean)