Changes from 2.11.1 to 2.11.2

• Added support for ARMv7l platforms (Raspberry Pi). The NEON version
  of the bitshuffle filter was not compiling there, and besides it offered
  no performance advantage over the generic bitshuffle version (it is 2x to
  3x slower actually). So bitshuffle-neon.c has been disabled by default in
  all ARM platforms.

• Also, unaligned access has been disabled in all ARM non-64bits platforms.
  It turned out that, at least the armv7l CPU in Raspberry Pi 4, had issues
  because __ARM_FEATURE_UNALIGNED C macro was asserted in the compiler
  (both gcc and clang), but it actually made binaries to raise a "Bus error".

• Thanks to Ben Nuttall for providing a Raspberry Pi for tracking down these
  issues.