python3: bump to 3.4.0rc1

This commit bumps the Python3 package to use Python 3.4.0rc1.

About the patches:

 * The patches below 100 are significantly changed, because like for
   Python 2.x, a good number of improvements have been made in the
   upstream Python for cross-compilation. Therefore, almost all of
   these patches have been modified.

 * All the patches above 100 are simply updated for Python 3.4.0, with
   a small refactoring for the handling of test modules.

The details of the python3.mk changes are:

 * --without-ensurepip to tell Python to not use PIP at build time.

 * Many environment variables are no longer passed, they were specific
   to our cross-compilation patches

 * The fixup of the LIBDIR in the Python Makefile is no longer needed
   since Python has switched to _sysconfigdata.py for distutils
   configuration instead of parsing the Makefile.

 * A new post patch hooks touches the two files generated by pgen to
   make sure they are newer than the pgen sources, which ensures pgen
   is not built/executed.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/python3/python3-010-no-termcap-host-path.patch

@@ -0,0 +1,22 @@
+Don't look in /usr/lib/termcap for libraries
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+
+Index: b/setup.py
+===================================================================
+--- a/setup.py
++++ b/setup.py
+@@ -725,12 +725,9 @@
+                 pass # Issue 7384: Already linked against curses or tinfo.
+             elif curses_library:
+                 readline_libs.append(curses_library)
+-            elif self.compiler.find_library_file(lib_dirs +
+-                                                     ['/usr/lib/termcap'],
+-                                                     'termcap'):
++            elif self.compiler.find_library_file(lib_dirs, 'termcap'):
+                 readline_libs.append('termcap')
+             exts.append( Extension('readline', ['readline.c'],
+-                                   library_dirs=['/usr/lib/termcap'],
+                                    extra_link_args=readline_extra_link_args,
+                                    libraries=readline_libs) )
+         else: