Add CPython 2.7.8 (refs #201)

plugins/python-build/share/python-build/2.7.8

@@ -0,0 +1,3 @@
+require_cc
+install_package "readline-6.3" "http://ftpmirror.gnu.org/readline/readline-6.3.tar.gz#56ba6071b9462f980c5a72ab0023893b65ba6debb4eeb475d7a563dc65cafd43" standard --if has_broken_mac_readline
+install_package "Python-2.7.8" "https://www.python.org/ftp/python/2.7.8/Python-2.7.8.tgz#74d70b914da4487aa1d97222b29e9554d042f825f26cb2b93abd20fdda56b557" ldflags_dirs standard verify_py27 ensurepip