* [msbuild] Don't use a timestamped directory for the IPA
After discussion with Mikayla Hutchinson and Madhuri Gummalla,
this naming convention is annoying to customers so just put
the *.ipa in the bin directory. This also has the added
benefit that the *.ipa will be cleaned up with /t:Clean
* [msbuild] Fixed wildcard expansion for deleting the *.ipa file
* [msbuild] Add the zipped *.ipa file to the FileWrites item group
* [msbuild] s/TaskProperty/TaskParameter/