Fix download URL of portable PyPy 2.6 (fixes #389)

plugins/python-build/share/python-build/pypy-2.6.0

@@ -3,7 +3,7 @@ case "$(pypy_architecture 2>/dev/null || true)" in
   if require_distro "Ubuntu 12.04" "Ubuntu 12.10" "Ubuntu 13.04" "Ubuntu 13.10" "Ubuntu 14.04" 1>/dev/null 2>&1; then
     install_package "pypy-2.6.0-linux" "https://bitbucket.org/pypy/pypy/downloads/pypy-2.6.0-linux.tar.bz2#6e0b052c40a59bf5a85ee239980bbcab8b031b4c2bc33b99efe1b072977d9910" "pypy" verify_py27 ensurepip
   else
-    install_package "pypy-2.6.0-linux_i686-portable" "https://bitbucket.org/squeaky/portable-pypy/downloads/pypy-2.6.0-linux_i686-portable.tar.bz2#e01db0984f7fecd80dadfb1d5f65118e596e3984d12643b4d552e83f92bff549" "pypy" verify_py27 ensurepip
+    install_package "pypy-2.6-linux_i686-portable" "https://bitbucket.org/squeaky/portable-pypy/downloads/pypy-2.6-linux_i686-portable.tar.bz2#e01db0984f7fecd80dadfb1d5f65118e596e3984d12643b4d552e83f92bff549" "pypy" verify_py27 ensurepip
   fi
   ;;
 "linux-armel" )
@@ -22,7 +22,7 @@ case "$(pypy_architecture 2>/dev/null || true)" in
   if require_distro "Ubuntu 12.04" "Ubuntu 12.10" "Ubuntu 13.04" "Ubuntu 13.10" "Ubuntu 14.04" 1>/dev/null 2>&1; then
     install_package "pypy-2.6.0-linux64" "https://bitbucket.org/pypy/pypy/downloads/pypy-2.6.0-linux64.tar.bz2#f5d2b0e3594cec57e32d3e43a951041ec330e1e962a836be470d591633e51388" "pypy" verify_py27 ensurepip
   else
-    install_package "pypy-2.6.0-linux_x86_64-portable" "https://bitbucket.org/squeaky/portable-pypy/downloads/pypy-2.6.0-linux_x86_64-portable.tar.bz2#97284b66476c5d1b17a62f5017569a0073730928e19f95b49d78d6bc60b69495" "pypy" verify_py27 ensurepip
+    install_package "pypy-2.6-linux_x86_64-portable" "https://bitbucket.org/squeaky/portable-pypy/downloads/pypy-2.6-linux_x86_64-portable.tar.bz2#97284b66476c5d1b17a62f5017569a0073730928e19f95b49d78d6bc60b69495" "pypy" verify_py27 ensurepip
   fi
   ;;
 "osx64" )