FIx build for r20.
I now have access to a 10.8.4 machine, so zipalign is now functional.  It was broken on 10.5.8:

$ ./zipalign
dyld: unknown required load command 0x80000022
Trace/BPT trap

https://twitter.com/jabsys/status/219447740134993921
Fix typo.
Move implemented interface methods to the bottom of the class.
Update local path to android tools.
Handle the response when the `Content-Length` header cannot be replied upon because the server is returning the response in chunks (`Transfer-Encoding: chunked`).
Replace deprecated fill_parent with match_parent.
Update targeted Android version.
Make pure methods static.
Update IntelliJ IDEA project files for 12.1.3
Simplification.
Extract private method.
Add precondition.
Make pure methods static.
Extract private method.