python3: Update to 3.6.1 (#2587)

* python3: Update to 3.6.1

The patches starting with 16 are new to fix the build.
Some no longer relevant patches were dropped, the rest is just refreshed.

* Bump pkgrel of all packages containing Python 3 bytecode/extensions.

The package list was generated using:
    pkgfile.exe -R mingw64 -r "cpython.*\\.(py[cod]|dll)"

* lensfun: Add cmake to makedepends

* numpy: Don't hardcode the Python version

* blender: rebuild for new Python

* boost: Don't hardcode Python versions; rebuild

* pillow: Don't hardcode Python version; rebuild

* python-dateutil: Don't hardcode Python versions

* sip: Don't hardcode Python versions

* pyqt4: Don't hardcode Python versions; rebuild

* pyqt5: Don't hardcode Python versions; rebuild

* opencv: Update Python3 version in patch

mingw-w64-python-numpy/PKGBUILD

@@ -6,7 +6,7 @@ _realname=numpy
 pkgbase=mingw-w64-python-${_realname}
 pkgname=("${MINGW_PACKAGE_PREFIX}-python2-${_realname}" "${MINGW_PACKAGE_PREFIX}-python3-${_realname}")
 pkgver=1.11.2
-pkgrel=1
+pkgrel=2
 pkgdesc="Scientific tools for Python (mingw-w64)"
 arch=('any')
 license=('BSD')
@@ -77,7 +77,7 @@ package_python2-numpy() {
   depends=("${MINGW_PACKAGE_PREFIX}-openblas" "${MINGW_PACKAGE_PREFIX}-python2")
   optdepends=("${MINGW_PACKAGE_PREFIX}-python2-nose: testsuite")
 
-  _pyver=2.7
+  _pyver=$(${MINGW_PREFIX}/bin/python2 -c "import sys;sys.stdout.write('.'.join(map(str, sys.version_info[:2])))")
 
   export ATLAS=None
   export LDFLAGS="$LDFLAGS -shared"
@@ -103,7 +103,7 @@ package_python3-numpy() {
   depends=("${MINGW_PACKAGE_PREFIX}-openblas" "${MINGW_PACKAGE_PREFIX}-python3")
   optdepends=("${MINGW_PACKAGE_PREFIX}-python3-nose: testsuite")
 
-  _pyver=3.5
+  _pyver=$(${MINGW_PREFIX}/bin/python3 -c "import sys;sys.stdout.write('.'.join(map(str, sys.version_info[:2])))")
   _pyinc=${_pyver}m
 
   export ATLAS=None