python3: Upgrade from 3.3.3 to 3.4.2

python3: Upgrade from 3.3.3 to 3.4.2

Modifies:
python3-native_3.3.3.bb -> python3-native_3.4.2.bb: Updates checksums, version, patches
and SRC_URIs to use xz format, LICENSE did not change, dates were updated, adds fix for
ctypes/libffi needed for pip <- required since Python 3.4 (see PEP #453).
python3_3.3.3.bb -> python3_3.4.2.bb: Updates checksums, version, patches and SRC_URIs
to use xz format, adds fix for ctypes/libffi, fixes oe_multilib_header() call,
adds python3-core as RDEPENDS to python3-misc to avoid QA issue.
generate-manifest-3.4.py - > generate-manifest-3.4.py: fixes reprlib,
adds _sitebuiltins and _collections_abc <- formerly part of collections, separated since 3.4
python-3.3-manifest.inc -> python-3.4-manifest.inc

Rebases:
12-distutils-prefix-is-inside-staging-area.patch
python-3.3-multilib.patch
04-default-is-optimized.patch
avoid-ncursesw-include-path.patch

Deletes (fixed upstream):
fix-ast.h-dependency.patch
python3-fix-build-error-with-Readline-6.3.patch
06-ctypes-libffi-fix-configure.patch
remove_sqlite_rpath.patch

[YOCTO #6857]

Signed-off-by: Alejandro Hernandez <alejandro.hernandez@linux.intel.com>