Land jsctypes. b=513783, r=jorendorff, sr=bsmedberg.

browser/installer/package-manifest.in

client.py

configure.in

js/ctypes/Makefile.in

js/ctypes/ctypes.jsm

js/ctypes/libffi/ChangeLog

js/ctypes/libffi/ChangeLog.libffi

js/ctypes/libffi/ChangeLog.libgcj

js/ctypes/libffi/ChangeLog.v1

js/ctypes/libffi/LICENSE

js/ctypes/libffi/Makefile.am

js/ctypes/libffi/Makefile.in

js/ctypes/libffi/README

js/ctypes/libffi/TODO

js/ctypes/libffi/acinclude.m4

js/ctypes/libffi/aclocal.m4

js/ctypes/libffi/compile

js/ctypes/libffi/config-ml.in

js/ctypes/libffi/config.guess

js/ctypes/libffi/config.sub