Added a build target which packages a test version of Titanium Developer.
Added a build target which packages a test version of Titanium Developer.

Titanium Developer sources are expected to be in <source>/../titanium_developer.
This packages Developer with the latest runtime and modules from your source
tree. titanium_developer.py packages with the sdk you have installed on your
system.

wyrover/titanium_desktop,jvkops/titanium_desktop,wyrover/titanium_desktop,jvkops/titanium_desktop,wyrover/titanium_desktop,wyrover/titanium_desktop,jvkops/titanium_desktop,appcelerator/titanium_desktop,appcelerator/titanium_desktop,wyrover/titanium_desktop,jvkops/titanium_desktop,jvkops/titanium_desktop,appcelerator/titanium_desktop,wyrover/titanium_desktop,jvkops/titanium_desktop,appcelerator/titanium_desktop,appcelerator/titanium_desktop